97540587 has 12 divisors (see below), whose sum is σ = 141185304. Its totient is φ = 64891680.

The previous prime is 97540571. The next prime is 97540591. The reversal of 97540587 is 78504579.

It is not a de Polignac number, because 97540587 - 2⁴ = 97540571 is a prime.

It is a super-2 number, since 2×97540587² = 19028332224609138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97540507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6618 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (11765442).

Almost surely, 2^97540587 is an apocalyptic number.

97540587 is a deficient number, since it is larger than the sum of its proper divisors (43644717).

97540587 is a wasteful number, since it uses less digits than its factorization.

97540587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22570 (or 22567 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 97540587 is about 9876.2638178615. The cubic root of 97540587 is about 460.3220602224.

The spelling of 97540587 in words is "ninety-seven million, five hundred forty thousand, five hundred eighty-seven".