99870792 has 32 divisors (see below), whose sum is σ = 285345600. Its totient is φ = 28534464.

The previous prime is 99870787. The next prime is 99870833. The reversal of 99870792 is 29707899.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297067 + ... + 297402.

It is an arithmetic number, because the mean of its divisors is an integer number (8917050).

Almost surely, 2^99870792 is an apocalyptic number.

It is an amenable number.

99870792 is an abundant number, since it is smaller than the sum of its proper divisors (185474808).

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

99870792 is a wasteful number, since it uses less digits than its factorization.

99870792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594485 (or 594481 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 99870792 is about 9993.5375118123. The cubic root of 99870792 is about 463.9588870628.

The spelling of 99870792 in words is "ninety-nine million, eight hundred seventy thousand, seven hundred ninety-two".