91680008 has 32 divisors (see below), whose sum is σ = 196862400. Its totient is φ = 39210432.

The previous prime is 91680007. The next prime is 91680013. The reversal of 91680008 is 80008619.

It is not an unprimeable number, because it can be changed into a prime (91680007) 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, 31478 + ... + 34266.

It is an arithmetic number, because the mean of its divisors is an integer number (6151950).

Almost surely, 2^91680008 is an apocalyptic number.

It is an amenable number.

91680008 is an abundant number, since it is smaller than the sum of its proper divisors (105182392).

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

91680008 is a wasteful number, since it uses less digits than its factorization.

91680008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389 (or 3385 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 91680008 is about 9574.9677806246. The cubic root of 91680008 is about 450.9117448820.

The spelling of 91680008 in words is "ninety-one million, six hundred eighty thousand, eight".