97936521 has 16 divisors (see below), whose sum is σ = 134439744. Its totient is φ = 63370944.

The previous prime is 97936483. The next prime is 97936523. The reversal of 97936521 is 12563979.

It is not a de Polignac number, because 97936521 - 2²¹ = 95839369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97936523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59911 + ... + 61523.

It is an arithmetic number, because the mean of its divisors is an integer number (8402484).

Almost surely, 2^97936521 is an apocalyptic number.

It is an amenable number.

97936521 is a deficient number, since it is larger than the sum of its proper divisors (36503223).

97936521 is a wasteful number, since it uses less digits than its factorization.

97936521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200.

The product of its digits is 102060, while the sum is 42.

The square root of 97936521 is about 9896.2882435790. The cubic root of 97936521 is about 460.9440614851.

The spelling of 97936521 in words is "ninety-seven million, nine hundred thirty-six thousand, five hundred twenty-one".