91332974 has 4 divisors (see below), whose sum is σ = 136999464. Its totient is φ = 45666486.

The previous prime is 91332949. The next prime is 91332979. The reversal of 91332974 is 47923319.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91332979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22833242 + ... + 22833245.

It is an arithmetic number, because the mean of its divisors is an integer number (34249866).

Almost surely, 2^91332974 is an apocalyptic number.

91332974 is a deficient number, since it is larger than the sum of its proper divisors (45666490).

91332974 is a wasteful number, since it uses less digits than its factorization.

91332974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45666489.

The product of its digits is 40824, while the sum is 38.

The square root of 91332974 is about 9556.8286580853. The cubic root of 91332974 is about 450.3420839195.

The spelling of 91332974 in words is "ninety-one million, three hundred thirty-two thousand, nine hundred seventy-four".