91064804 has 12 divisors (see below), whose sum is σ = 159625200. Its totient is φ = 45457608.

The previous prime is 91064791. The next prime is 91064819. The reversal of 91064804 is 40846019.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15914 + ... + 20865.

It is an arithmetic number, because the mean of its divisors is an integer number (13302100).

Almost surely, 2^91064804 is an apocalyptic number.

It is an amenable number.

91064804 is a deficient number, since it is larger than the sum of its proper divisors (68560396).

91064804 is a wasteful number, since it uses less digits than its factorization.

91064804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37402 (or 37400 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 91064804 is about 9542.7880621965. The cubic root of 91064804 is about 449.9008901074.

The spelling of 91064804 in words is "ninety-one million, sixty-four thousand, eight hundred four".