91712325 has 12 divisors (see below), whose sum is σ = 151631168. Its totient is φ = 48913200.

The previous prime is 91712311. The next prime is 91712329. The reversal of 91712325 is 52321719.

It is not a de Polignac number, because 91712325 - 2⁷ = 91712197 is a prime.

It is a super-2 number, since 2×91712325² = 16822301113811250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91712292 and 91712301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91712329) 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, 611341 + ... + 611490.

Almost surely, 2^91712325 is an apocalyptic number.

It is an amenable number.

91712325 is a deficient number, since it is larger than the sum of its proper divisors (59918843).

91712325 is a wasteful number, since it uses less digits than its factorization.

91712325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222844 (or 1222839 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 91712325 is about 9576.6552094142. The cubic root of 91712325 is about 450.9647204554.

The spelling of 91712325 in words is "ninety-one million, seven hundred twelve thousand, three hundred twenty-five".