97915892 has 12 divisors (see below), whose sum is σ = 180371520. Its totient is φ = 46381176.

The previous prime is 97915891. The next prime is 97915897. The reversal of 97915892 is 29851979.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 97915892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97915891) 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, 644108 + ... + 644259.

It is an arithmetic number, because the mean of its divisors is an integer number (15030960).

Almost surely, 2^97915892 is an apocalyptic number.

It is an amenable number.

97915892 is a deficient number, since it is larger than the sum of its proper divisors (82455628).

97915892 is a wasteful number, since it uses less digits than its factorization.

97915892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288390 (or 1288388 counting only the distinct ones).

The product of its digits is 408240, while the sum is 50.

The square root of 97915892 is about 9895.2459292329. The cubic root of 97915892 is about 460.9116953406.

The spelling of 97915892 in words is "ninety-seven million, nine hundred fifteen thousand, eight hundred ninety-two".