91675023 has 16 divisors (see below), whose sum is σ = 133529472. Its totient is φ = 55484000.

The previous prime is 91675021. The next prime is 91675027. The reversal of 91675023 is 32057619.

It is not a de Polignac number, because 91675023 - 2¹ = 91675021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91675021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30613 + ... + 33473.

It is an arithmetic number, because the mean of its divisors is an integer number (8345592).

Almost surely, 2^91675023 is an apocalyptic number.

91675023 is a deficient number, since it is larger than the sum of its proper divisors (41854449).

91675023 is a wasteful number, since it uses less digits than its factorization.

91675023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 91675023 is about 9574.7074628941. The cubic root of 91675023 is about 450.9035721231.

The spelling of 91675023 in words is "ninety-one million, six hundred seventy-five thousand, twenty-three".