91863012 has 24 divisors (see below), whose sum is σ = 223667136. Its totient is φ = 29289568.

The previous prime is 91862999. The next prime is 91863029. The reversal of 91863012 is 21036819.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166143 + ... + 166694.

It is an arithmetic number, because the mean of its divisors is an integer number (9319464).

Almost surely, 2^91863012 is an apocalyptic number.

91863012 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91863012 is an abundant number, since it is smaller than the sum of its proper divisors (131804124).

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

91863012 is a wasteful number, since it uses less digits than its factorization.

91863012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332867 (or 332865 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 91863012 is about 9584.5193932716. The cubic root of 91863012 is about 451.2115696382.

The spelling of 91863012 in words is "ninety-one million, eight hundred sixty-three thousand, twelve".