84996720 has 60 divisors (see below), whose sum is σ = 285449736. Its totient is φ = 22665600.

The previous prime is 84996713. The next prime is 84996721. The reversal of 84996720 is 2769948.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84996721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58306 + ... + 59745.

Almost surely, 2^84996720 is an apocalyptic number.

84996720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84996720 is an abundant number, since it is smaller than the sum of its proper divisors (200453016).

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

84996720 is a wasteful number, since it uses less digits than its factorization.

84996720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118070 (or 118061 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 84996720 is about 9219.3665726014. The cubic root of 84996720 is about 439.6773116131.

The spelling of 84996720 in words is "eighty-four million, nine hundred ninety-six thousand, seven hundred twenty".