91900968 has 32 divisors (see below), whose sum is σ = 230234400. Its totient is φ = 30569408.

The previous prime is 91900943. The next prime is 91900969. The reversal of 91900968 is 86900919.

It is not an unprimeable number, because it can be changed into a prime (91900969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8455 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (7194825).

Almost surely, 2^91900968 is an apocalyptic number.

It is an amenable number.

91900968 is an abundant number, since it is smaller than the sum of its proper divisors (138333432).

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

91900968 is a wasteful number, since it uses less digits than its factorization.

91900968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8041 (or 8037 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 91900968 is about 9586.4992567673. The cubic root of 91900968 is about 451.2737050134.

The spelling of 91900968 in words is "ninety-one million, nine hundred thousand, nine hundred sixty-eight".