91000968 has 32 divisors (see below), whose sum is σ = 228960960. Its totient is φ = 30139200.

The previous prime is 91000963. The next prime is 91000979. The reversal of 91000968 is 86900019.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (91000963) 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, 8308 + ... + 15843.

It is an arithmetic number, because the mean of its divisors is an integer number (7155030).

Almost surely, 2^91000968 is an apocalyptic number.

It is an amenable number.

91000968 is an abundant number, since it is smaller than the sum of its proper divisors (137959992).

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

91000968 is a wasteful number, since it uses less digits than its factorization.

91000968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24317 (or 24313 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 91000968 is about 9539.4427510206. The cubic root of 91000968 is about 449.7957393964.

The spelling of 91000968 in words is "ninety-one million, nine hundred sixty-eight", and thus it is an aban number.