91364758 has 4 divisors (see below), whose sum is σ = 137047140. Its totient is φ = 45682378.

The previous prime is 91364731. The next prime is 91364759. The reversal of 91364758 is 85746319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85746319 = 2161 ⋅39679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91364759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22841188 + ... + 22841191.

It is an arithmetic number, because the mean of its divisors is an integer number (34261785).

Almost surely, 2^91364758 is an apocalyptic number.

91364758 is a deficient number, since it is larger than the sum of its proper divisors (45682382).

91364758 is a wasteful number, since it uses less digits than its factorization.

91364758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45682381.

The product of its digits is 181440, while the sum is 43.

The square root of 91364758 is about 9558.4914081669. The cubic root of 91364758 is about 450.3943177480.

The spelling of 91364758 in words is "ninety-one million, three hundred sixty-four thousand, seven hundred fifty-eight".