91115675 has 24 divisors (see below), whose sum is σ = 129637536. Its totient is φ = 62231040.

The previous prime is 91115669. The next prime is 91115683. The reversal of 91115675 is 57651119.

It is a happy number.

It is not a de Polignac number, because 91115675 - 2⁶ = 91115611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50387 + ... + 52163.

It is an arithmetic number, because the mean of its divisors is an integer number (5401564).

Almost surely, 2^91115675 is an apocalyptic number.

91115675 is a deficient number, since it is larger than the sum of its proper divisors (38521861).

91115675 is a wasteful number, since it uses less digits than its factorization.

91115675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087 (or 2082 counting only the distinct ones).

The product of its digits is 9450, while the sum is 35.

The square root of 91115675 is about 9545.4531060605. The cubic root of 91115675 is about 449.9846496821.

The spelling of 91115675 in words is "ninety-one million, one hundred fifteen thousand, six hundred seventy-five".