91792772 has 12 divisors (see below), whose sum is σ = 166176780. Its totient is φ = 44313696.

The previous prime is 91792759. The next prime is 91792777. The reversal of 91792772 is 27729719.

It can be written as a sum of positive squares in 2 ways, for example, as 56911936 + 34880836 = 7544^2 + 5906^2 .

It is not an unprimeable number, because it can be changed into a prime (91792777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395543 + ... + 395774.

It is an arithmetic number, because the mean of its divisors is an integer number (13848065).

Almost surely, 2^91792772 is an apocalyptic number.

It is an amenable number.

91792772 is a deficient number, since it is larger than the sum of its proper divisors (74384008).

91792772 is a wasteful number, since it uses less digits than its factorization.

91792772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791350 (or 791348 counting only the distinct ones).

The product of its digits is 111132, while the sum is 44.

The square root of 91792772 is about 9580.8544504131. The cubic root of 91792772 is about 451.0965390033.

The spelling of 91792772 in words is "ninety-one million, seven hundred ninety-two thousand, seven hundred seventy-two".