91323442 has 8 divisors (see below), whose sum is σ = 156554496. Its totient is φ = 39138612.

The previous prime is 91323391. The next prime is 91323451. The reversal of 91323442 is 24432319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 91323442.

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, 3261538 + ... + 3261565.

It is an arithmetic number, because the mean of its divisors is an integer number (19569312).

Almost surely, 2^91323442 is an apocalyptic number.

91323442 is a deficient number, since it is larger than the sum of its proper divisors (65231054).

91323442 is a wasteful number, since it uses less digits than its factorization.

91323442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523112.

The product of its digits is 5184, while the sum is 28.

The square root of 91323442 is about 9556.3299440737. The cubic root of 91323442 is about 450.3264166677.

It can be divided in two parts, 913234 and 42, that added together give a triangular number (913276 = T₁₃₅₁).

The spelling of 91323442 in words is "ninety-one million, three hundred twenty-three thousand, four hundred forty-two".