91355875 has 32 divisors (see below), whose sum is σ = 130044096. Its totient is φ = 63475200.

The previous prime is 91355821. The next prime is 91355881. The reversal of 91355875 is 57855319.

It is not a de Polignac number, because 91355875 - 2¹¹ = 91353827 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 25972 + ... + 29278.

It is an arithmetic number, because the mean of its divisors is an integer number (4063878).

Almost surely, 2^91355875 is an apocalyptic number.

91355875 is a deficient number, since it is larger than the sum of its proper divisors (38688221).

91355875 is a wasteful number, since it uses less digits than its factorization.

91355875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352 (or 3342 counting only the distinct ones).

The product of its digits is 189000, while the sum is 43.

The square root of 91355875 is about 9558.0267314964. The cubic root of 91355875 is about 450.3797206449.

The spelling of 91355875 in words is "ninety-one million, three hundred fifty-five thousand, eight hundred seventy-five".