87535091 has 16 divisors (see below), whose sum is σ = 106179264. Its totient is φ = 70447104.

The previous prime is 87535073. The next prime is 87535093. The reversal of 87535091 is 19053578.

It is not a de Polignac number, because 87535091 - 2²² = 83340787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87535093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79541 + ... + 80633.

It is an arithmetic number, because the mean of its divisors is an integer number (6636204).

Almost surely, 2^87535091 is an apocalyptic number.

87535091 is a deficient number, since it is larger than the sum of its proper divisors (18644173).

87535091 is a wasteful number, since it uses less digits than its factorization.

87535091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 87535091 is about 9356.0189717636. The cubic root of 87535091 is about 444.0113404430.

The spelling of 87535091 in words is "eighty-seven million, five hundred thirty-five thousand, ninety-one".