91323265 has 8 divisors (see below), whose sum is σ = 119550528. Its totient is φ = 66416880.

The previous prime is 91323263. The next prime is 91323301. The reversal of 91323265 is 56232319.

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

It is not a de Polignac number, because 91323265 - 2¹ = 91323263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91323263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830157 + ... + 830266.

It is an arithmetic number, because the mean of its divisors is an integer number (14943816).

Almost surely, 2^91323265 is an apocalyptic number.

It is an amenable number.

91323265 is a deficient number, since it is larger than the sum of its proper divisors (28227263).

91323265 is a wasteful number, since it uses less digits than its factorization.

91323265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660439.

The product of its digits is 9720, while the sum is 31.

The square root of 91323265 is about 9556.3206831918. The cubic root of 91323265 is about 450.3261257317.

The spelling of 91323265 in words is "ninety-one million, three hundred twenty-three thousand, two hundred sixty-five".