97656580 has 48 divisors (see below), whose sum is σ = 246718080. Its totient is φ = 31719168.

The previous prime is 97656571. The next prime is 97656589. The reversal of 97656580 is 8565679.

It is an interprime number because it is at equal distance from previous prime (97656571) and next prime (97656589).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 97656580.

It is not an unprimeable number, because it can be changed into a prime (97656589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15697 + ... + 21016.

It is an arithmetic number, because the mean of its divisors is an integer number (5139960).

Almost surely, 2^97656580 is an apocalyptic number.

It is an amenable number.

97656580 is an abundant number, since it is smaller than the sum of its proper divisors (149061500).

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

97656580 is a wasteful number, since it uses less digits than its factorization.

97656580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36748 (or 36746 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 97656580 is about 9882.1343848381. The cubic root of 97656580 is about 460.5044560411.

The spelling of 97656580 in words is "ninety-seven million, six hundred fifty-six thousand, five hundred eighty".