97240872 has 32 divisors (see below), whose sum is σ = 253673280. Its totient is φ = 31004160.

The previous prime is 97240853. The next prime is 97240873. The reversal of 97240872 is 27804279.

It is a self number, because there is not a number n which added to its sum of digits gives 97240872.

It is not an unprimeable number, because it can be changed into a prime (97240873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87529 + ... + 88632.

It is an arithmetic number, because the mean of its divisors is an integer number (7927290).

Almost surely, 2^97240872 is an apocalyptic number.

97240872 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

97240872 is an abundant number, since it is smaller than the sum of its proper divisors (156432408).

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

97240872 is a wasteful number, since it uses less digits than its factorization.

97240872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176193 (or 176189 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 97240872 is about 9861.0786428260. The cubic root of 97240872 is about 459.8500960824.

The spelling of 97240872 in words is "ninety-seven million, two hundred forty thousand, eight hundred seventy-two".