91863536 has 20 divisors (see below), whose sum is σ = 178467000. Its totient is φ = 45807552.

The previous prime is 91863511. The next prime is 91863547. The reversal of 91863536 is 63536819.

It is a hoax number, since the sum of its digits (41) 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 = 91863493 and 91863502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511 + ... + 13638.

It is an arithmetic number, because the mean of its divisors is an integer number (8923350).

Almost surely, 2^91863536 is an apocalyptic number.

It is an amenable number.

91863536 is a deficient number, since it is larger than the sum of its proper divisors (86603464).

91863536 is a wasteful number, since it uses less digits than its factorization.

91863536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15536 (or 15530 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 91863536 is about 9584.5467289799. The cubic root of 91863536 is about 451.2124275621.

The spelling of 91863536 in words is "ninety-one million, eight hundred sixty-three thousand, five hundred thirty-six".