91604806 has 24 divisors (see below), whose sum is σ = 147484584. Its totient is φ = 42524160.

The previous prime is 91604797. The next prime is 91604831. The reversal of 91604806 is 60840619.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434041 + ... + 434251.

It is an arithmetic number, because the mean of its divisors is an integer number (6145191).

Almost surely, 2^91604806 is an apocalyptic number.

91604806 is a deficient number, since it is larger than the sum of its proper divisors (55879778).

91604806 is a wasteful number, since it uses less digits than its factorization.

91604806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 91604806 is about 9571.0399643926. The cubic root of 91604806 is about 450.7884219548.

The spelling of 91604806 in words is "ninety-one million, six hundred four thousand, eight hundred six".