97712880 has 40 divisors (see below), whose sum is σ = 302910672. Its totient is φ = 26056704.

The previous prime is 97712851. The next prime is 97712887. The reversal of 97712880 is 8821779.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97712887) 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, 203329 + ... + 203808.

Almost surely, 2^97712880 is an apocalyptic number.

It is an amenable number.

97712880 is an abundant number, since it is smaller than the sum of its proper divisors (205197792).

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

97712880 is a wasteful number, since it uses less digits than its factorization.

97712880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407153 (or 407147 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 97712880 is about 9884.9825493017. The cubic root of 97712880 is about 460.5929341897.

The spelling of 97712880 in words is "ninety-seven million, seven hundred twelve thousand, eight hundred eighty".