84947796 has 18 divisors (see below), whose sum is σ = 214729242. Its totient is φ = 28315920.

The previous prime is 84947791. The next prime is 84947801. The reversal of 84947796 is 69774948.

It is a happy number.

84947796 is a `hidden beast` number, since 84 + 9 + 477 + 96 = 666.

84947796 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (84947791) and next prime (84947801).

It can be written as a sum of positive squares in only one way, i.e., 62252100 + 22695696 = 7890^2 + 4764^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×84947796² = 14432256090515232, which contains 22 as substring.

84947796 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84947791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1179795 + ... + 1179866.

Almost surely, 2^84947796 is an apocalyptic number.

It is an amenable number.

84947796 is an abundant number, since it is smaller than the sum of its proper divisors (129781446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84947796 is a wasteful number, since it uses less digits than its factorization.

84947796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359671 (or 2359666 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 84947796 is about 9216.7128630548. The cubic root of 84947796 is about 439.5929361953.

It can be divided in two parts, 8494 and 7796, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 84947796 in words is "eighty-four million, nine hundred forty-seven thousand, seven hundred ninety-six".