91673265 has 32 divisors (see below), whose sum is σ = 158630400. Its totient is φ = 45031424.

The previous prime is 91673261. The next prime is 91673273. The reversal of 91673265 is 56237619.

It is a cyclic number.

It is not a de Polignac number, because 91673265 - 2² = 91673261 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91673261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8161 + ... + 15809.

It is an arithmetic number, because the mean of its divisors is an integer number (4957200).

Almost surely, 2^91673265 is an apocalyptic number.

It is an amenable number.

91673265 is a deficient number, since it is larger than the sum of its proper divisors (66957135).

91673265 is a wasteful number, since it uses less digits than its factorization.

91673265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721.

The product of its digits is 68040, while the sum is 39.

The square root of 91673265 is about 9574.6156580826. The cubic root of 91673265 is about 450.9006898639.

The spelling of 91673265 in words is "ninety-one million, six hundred seventy-three thousand, two hundred sixty-five".