91750875 has 16 divisors (see below), whose sum is σ = 152674080. Its totient is φ = 48933600.

The previous prime is 91750831. The next prime is 91750877. The reversal of 91750875 is 57805719.

It is not a de Polignac number, because 91750875 - 2⁶ = 91750811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91750877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121960 + ... + 122709.

It is an arithmetic number, because the mean of its divisors is an integer number (9542130).

Almost surely, 2^91750875 is an apocalyptic number.

91750875 is a deficient number, since it is larger than the sum of its proper divisors (60923205).

91750875 is a wasteful number, since it uses less digits than its factorization.

91750875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244687 (or 244677 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 42.

The square root of 91750875 is about 9578.6677048533. The cubic root of 91750875 is about 451.0278971867.

The spelling of 91750875 in words is "ninety-one million, seven hundred fifty thousand, eight hundred seventy-five".