99678792 has 16 divisors (see below), whose sum is σ = 249197040. Its totient is φ = 33226256.

The previous prime is 99678791. The next prime is 99678797. The reversal of 99678792 is 29787699.

It is not an unprimeable number, because it can be changed into a prime (99678791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2076618 + ... + 2076665.

It is an arithmetic number, because the mean of its divisors is an integer number (15574815).

Almost surely, 2^99678792 is an apocalyptic number.

It is an amenable number.

99678792 is an abundant number, since it is smaller than the sum of its proper divisors (149518248).

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

99678792 is a wasteful number, since it uses less digits than its factorization.

99678792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153292 (or 4153288 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 57.

The square root of 99678792 is about 9983.9266824231. The cubic root of 99678792 is about 463.6613784833.

The spelling of 99678792 in words is "ninety-nine million, six hundred seventy-eight thousand, seven hundred ninety-two".