97561576 has 16 divisors (see below), whose sum is σ = 209060640. Its totient is φ = 41812080.

The previous prime is 97561573. The next prime is 97561577. The reversal of 97561576 is 67516579.

It is a happy number.

It is a super-2 number, since 2×97561576² = 19036522223207552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97561571) 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, 871030 + ... + 871141.

It is an arithmetic number, because the mean of its divisors is an integer number (13066290).

Almost surely, 2^97561576 is an apocalyptic number.

It is an amenable number.

97561576 is an abundant number, since it is smaller than the sum of its proper divisors (111499064).

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

97561576 is a wasteful number, since it uses less digits than its factorization.

97561576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742184 (or 1742180 counting only the distinct ones).

The product of its digits is 396900, while the sum is 46.

The square root of 97561576 is about 9877.3263588888. The cubic root of 97561576 is about 460.3550755619.

The spelling of 97561576 in words is "ninety-seven million, five hundred sixty-one thousand, five hundred seventy-six".