97854564 has 24 divisors (see below), whose sum is σ = 233186688. Its totient is φ = 31924000.

The previous prime is 97854551. The next prime is 97854571. The reversal of 97854564 is 46545879.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86187 + ... + 87314.

It is an arithmetic number, because the mean of its divisors is an integer number (9716112).

Almost surely, 2^97854564 is an apocalyptic number.

97854564 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

97854564 is an abundant number, since it is smaller than the sum of its proper divisors (135332124).

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

97854564 is a wasteful number, since it uses less digits than its factorization.

97854564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173555 (or 173553 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 97854564 is about 9892.1465820114. The cubic root of 97854564 is about 460.8154471035.

The spelling of 97854564 in words is "ninety-seven million, eight hundred fifty-four thousand, five hundred sixty-four".