97887575 has 6 divisors (see below), whose sum is σ = 121380624. Its totient is φ = 78310040.

The previous prime is 97887497. The next prime is 97887577. The reversal of 97887575 is 57578879.

It is not a de Polignac number, because 97887575 - 2⁸ = 97887319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97887575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97887577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1957727 + ... + 1957776.

It is an arithmetic number, because the mean of its divisors is an integer number (20230104).

Almost surely, 2^97887575 is an apocalyptic number.

97887575 is a deficient number, since it is larger than the sum of its proper divisors (23493049).

97887575 is a wasteful number, since it uses less digits than its factorization.

97887575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915513 (or 3915508 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 56.

The square root of 97887575 is about 9893.8149871523. The cubic root of 97887575 is about 460.8672596024.

The spelling of 97887575 in words is "ninety-seven million, eight hundred eighty-seven thousand, five hundred seventy-five".