87706087 has 16 divisors (see below), whose sum is σ = 102643200. Its totient is φ = 73392480.

The previous prime is 87706057. The next prime is 87706127. The reversal of 87706087 is 78060778.

It is a de Polignac number, because none of the positive numbers 2^k-87706087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87706057) 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, 53364 + ... + 54982.

It is an arithmetic number, because the mean of its divisors is an integer number (6415200).

Almost surely, 2^87706087 is an apocalyptic number.

87706087 is a deficient number, since it is larger than the sum of its proper divisors (14937113).

87706087 is a wasteful number, since it uses less digits than its factorization.

87706087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 87706087 is about 9365.1528017433. The cubic root of 87706087 is about 444.3002713456.

The spelling of 87706087 in words is "eighty-seven million, seven hundred six thousand, eighty-seven".