91226804 has 12 divisors (see below), whose sum is σ = 163541028. Its totient is φ = 44500800.

The previous prime is 91226761. The next prime is 91226819. The reversal of 91226804 is 40862219.

It can be written as a sum of positive squares in 2 ways, for example, as 3429904 + 87796900 = 1852^2 + 9370^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 277967 + ... + 278294.

It is an arithmetic number, because the mean of its divisors is an integer number (13628419).

Almost surely, 2^91226804 is an apocalyptic number.

It is an amenable number.

91226804 is a deficient number, since it is larger than the sum of its proper divisors (72314224).

91226804 is a wasteful number, since it uses less digits than its factorization.

91226804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556306 (or 556304 counting only the distinct ones).

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

The square root of 91226804 is about 9551.2723759717. The cubic root of 91226804 is about 450.1675162338.

The spelling of 91226804 in words is "ninety-one million, two hundred twenty-six thousand, eight hundred four".