91713894 has 16 divisors (see below), whose sum is σ = 184161600. Its totient is φ = 30449000.

The previous prime is 91713889. The next prime is 91713911. The reversal of 91713894 is 49831719.

It is a happy number.

It is a super-2 number, since 2×91713894² = 16822876705286472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28944 + ... + 31955.

It is an arithmetic number, because the mean of its divisors is an integer number (11510100).

Almost surely, 2^91713894 is an apocalyptic number.

91713894 is an abundant number, since it is smaller than the sum of its proper divisors (92447706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91713894 is a wasteful number, since it uses less digits than its factorization.

91713894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61155.

The product of its digits is 54432, while the sum is 42.

The square root of 91713894 is about 9576.7371270177. The cubic root of 91713894 is about 450.9672921185.

The spelling of 91713894 in words is "ninety-one million, seven hundred thirteen thousand, eight hundred ninety-four".