97534557 has 8 divisors (see below), whose sum is σ = 144495680. Its totient is φ = 65023020.

The previous prime is 97534537. The next prime is 97534561. The reversal of 97534557 is 75543579.

97534557 is a `hidden beast` number, since 97 + 5 + 3 + 4 + 557 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-97534557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97534517) 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, 1806169 + ... + 1806222.

It is an arithmetic number, because the mean of its divisors is an integer number (18061960).

Almost surely, 2^97534557 is an apocalyptic number.

It is an amenable number.

97534557 is a deficient number, since it is larger than the sum of its proper divisors (46961123).

97534557 is a wasteful number, since it uses less digits than its factorization.

97534557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612400 (or 3612394 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 97534557 is about 9875.9585357574. The cubic root of 97534557 is about 460.3125742593.

The spelling of 97534557 in words is "ninety-seven million, five hundred thirty-four thousand, five hundred fifty-seven".