91450968 has 64 divisors (see below), whose sum is σ = 261999360. Its totient is φ = 26057856.

The previous prime is 91450963. The next prime is 91450979. The reversal of 91450968 is 86905419.

It is a Cunningham number, because it is equal to 9563²-1.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91450963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114346 + ... + 115142.

It is an arithmetic number, because the mean of its divisors is an integer number (4093740).

Almost surely, 2^91450968 is an apocalyptic number.

It is an amenable number.

91450968 is an abundant number, since it is smaller than the sum of its proper divisors (170548392).

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

91450968 is a wasteful number, since it uses less digits than its factorization.

91450968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 91450968 is about 9562.9999477152. Note that the first 4 decimals coincide. The cubic root of 91450968 is about 450.5359343070.

The spelling of 91450968 in words is "ninety-one million, four hundred fifty thousand, nine hundred sixty-eight".