97917825 has 12 divisors (see below), whose sum is σ = 161890928. Its totient is φ = 52222800.

The previous prime is 97917823. The next prime is 97917829. The reversal of 97917825 is 52871979.

It is not a de Polignac number, because 97917825 - 2¹ = 97917823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97917821) 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 11 ways as a sum of consecutive naturals, for example, 652711 + ... + 652860.

Almost surely, 2^97917825 is an apocalyptic number.

It is an amenable number.

97917825 is a deficient number, since it is larger than the sum of its proper divisors (63973103).

97917825 is a wasteful number, since it uses less digits than its factorization.

97917825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305584 (or 1305579 counting only the distinct ones).

The product of its digits is 317520, while the sum is 48.

The square root of 97917825 is about 9895.3436019170. The cubic root of 97917825 is about 460.9147283397.

The spelling of 97917825 in words is "ninety-seven million, nine hundred seventeen thousand, eight hundred twenty-five".