91073936 has 10 divisors (see below), whose sum is σ = 176455782. Its totient is φ = 45536960.

The previous prime is 91073911. The next prime is 91073959. The reversal of 91073936 is 63937019.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 3763600 = 9344^2 + 1940^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91073936.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2846045 + ... + 2846076.

Almost surely, 2^91073936 is an apocalyptic number.

It is an amenable number.

91073936 is a deficient number, since it is larger than the sum of its proper divisors (85381846).

91073936 is a wasteful number, since it uses less digits than its factorization.

91073936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692129 (or 5692123 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 91073936 is about 9543.2665267192. The cubic root of 91073936 is about 449.9159283271.

The spelling of 91073936 in words is "ninety-one million, seventy-three thousand, nine hundred thirty-six".