91930636 has 12 divisors (see below), whose sum is σ = 183861328. Its totient is φ = 39398832.

The previous prime is 91930627. The next prime is 91930649. The reversal of 91930636 is 63603919.

91930636 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 91930595 and 91930604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641591 + ... + 1641646.

Almost surely, 2^91930636 is an apocalyptic number.

It is an amenable number.

91930636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

91930636 is a wasteful number, since it uses less digits than its factorization.

91930636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283248 (or 3283246 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 91930636 is about 9588.0465163661. The cubic root of 91930636 is about 451.3222607146.

The spelling of 91930636 in words is "ninety-one million, nine hundred thirty thousand, six hundred thirty-six".