91629774 has 12 divisors (see below), whose sum is σ = 198531216. Its totient is φ = 30543252.

The previous prime is 91629751. The next prime is 91629781. The reversal of 91629774 is 47792619.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2545254 + ... + 2545289.

It is an arithmetic number, because the mean of its divisors is an integer number (16544268).

Almost surely, 2^91629774 is an apocalyptic number.

91629774 is an abundant number, since it is smaller than the sum of its proper divisors (106901442).

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

91629774 is a wasteful number, since it uses less digits than its factorization.

91629774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090551 (or 5090548 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 91629774 is about 9572.3442269906. The cubic root of 91629774 is about 450.8293741834.

The spelling of 91629774 in words is "ninety-one million, six hundred twenty-nine thousand, seven hundred seventy-four".