87887507 has 4 divisors (see below), whose sum is σ = 88558536. Its totient is φ = 87216480.

The previous prime is 87887497. The next prime is 87887533. The reversal of 87887507 is 70578878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87887507 - 2⁴ = 87887491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87887557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335318 + ... + 335579.

It is an arithmetic number, because the mean of its divisors is an integer number (22139634).

Almost surely, 2^87887507 is an apocalyptic number.

87887507 is a deficient number, since it is larger than the sum of its proper divisors (671029).

87887507 is a wasteful number, since it uses less digits than its factorization.

87887507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671028.

The product of its (nonzero) digits is 878080, while the sum is 50.

The square root of 87887507 is about 9374.8337051918. The cubic root of 87887507 is about 444.6064053311.

The spelling of 87887507 in words is "eighty-seven million, eight hundred eighty-seven thousand, five hundred seven".