91032697 has 4 divisors (see below), whose sum is σ = 104037376. Its totient is φ = 78028020.

The previous prime is 91032659. The next prime is 91032703. The reversal of 91032697 is 79623019.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 91032697 - 2¹¹ = 91030649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91132697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6502329 + ... + 6502342.

It is an arithmetic number, because the mean of its divisors is an integer number (26009344).

Almost surely, 2^91032697 is an apocalyptic number.

It is an amenable number.

91032697 is a deficient number, since it is larger than the sum of its proper divisors (13004679).

91032697 is a wasteful number, since it uses less digits than its factorization.

91032697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004678.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 91032697 is about 9541.1056487181. The cubic root of 91032697 is about 449.8480095754.

The spelling of 91032697 in words is "ninety-one million, thirty-two thousand, six hundred ninety-seven".