91375038 has 12 divisors (see below), whose sum is σ = 197979288. Its totient is φ = 30458340.

The previous prime is 91375033. The next prime is 91375079. The reversal of 91375038 is 83057319.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91374993 and 91375011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91375033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2538178 + ... + 2538213.

It is an arithmetic number, because the mean of its divisors is an integer number (16498274).

Almost surely, 2^91375038 is an apocalyptic number.

91375038 is an abundant number, since it is smaller than the sum of its proper divisors (106604250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91375038 is a wasteful number, since it uses less digits than its factorization.

91375038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076399 (or 5076396 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 91375038 is about 9559.0291348023. The cubic root of 91375038 is about 450.4112093083.

The spelling of 91375038 in words is "ninety-one million, three hundred seventy-five thousand, thirty-eight".