84846789 has 6 divisors (see below), whose sum is σ = 122556486. Its totient is φ = 56564520.

The previous prime is 84846787. The next prime is 84846863. The reversal of 84846789 is 98764848.

It can be written as a sum of positive squares in only one way, i.e., 80245764 + 4601025 = 8958^2 + 2145^2 .

It is not a de Polignac number, because 84846789 - 2¹ = 84846787 is a prime.

It is a super-2 number, since 2×84846789² = 14397955207221042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84846781) 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, 4713702 + ... + 4713719.

It is an arithmetic number, because the mean of its divisors is an integer number (20426081).

Almost surely, 2^84846789 is an apocalyptic number.

It is an amenable number.

84846789 is a deficient number, since it is larger than the sum of its proper divisors (37709697).

84846789 is a wasteful number, since it uses less digits than its factorization.

84846789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427427 (or 9427424 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 84846789 is about 9211.2316766000. The cubic root of 84846789 is about 439.4186347375.

The spelling of 84846789 in words is "eighty-four million, eight hundred forty-six thousand, seven hundred eighty-nine".