91712495 has 16 divisors (see below), whose sum is σ = 126895680. Its totient is φ = 62329344.

The previous prime is 91712483. The next prime is 91712497. The reversal of 91712495 is 59421719.

It is not a de Polignac number, because 91712495 - 2⁴ = 91712479 is a prime.

It is a super-2 number, since 2×91712495² = 16822363478250050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91712497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7640 + ... + 15549.

It is an arithmetic number, because the mean of its divisors is an integer number (7930980).

Almost surely, 2^91712495 is an apocalyptic number.

91712495 is a deficient number, since it is larger than the sum of its proper divisors (35183185).

91712495 is a wasteful number, since it uses less digits than its factorization.

91712495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23314.

The product of its digits is 22680, while the sum is 38.

The square root of 91712495 is about 9576.6640851603. The cubic root of 91712495 is about 450.9649990946.

The spelling of 91712495 in words is "ninety-one million, seven hundred twelve thousand, four hundred ninety-five".