91344392 has 16 divisors (see below), whose sum is σ = 175448700. Its totient is φ = 44558080.

The previous prime is 91344373. The next prime is 91344397. The reversal of 91344392 is 29344319.

It can be written as a sum of positive squares in 2 ways, for example, as 83649316 + 7695076 = 9146^2 + 2774^2 .

It is not an unprimeable number, because it can be changed into a prime (91344397) 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, 138917 + ... + 139572.

Almost surely, 2^91344392 is an apocalyptic number.

It is an amenable number.

91344392 is a deficient number, since it is larger than the sum of its proper divisors (84104308).

91344392 is a wasteful number, since it uses less digits than its factorization.

91344392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278536 (or 278532 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 91344392 is about 9557.4260133155. The cubic root of 91344392 is about 450.3608496563.

The spelling of 91344392 in words is "ninety-one million, three hundred forty-four thousand, three hundred ninety-two".