87901087 has 4 divisors (see below), whose sum is σ = 92527480. Its totient is φ = 83274696.

The previous prime is 87901081. The next prime is 87901141. The reversal of 87901087 is 78010978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78010978 = 2 ⋅39005489.

It is a cyclic number.

It is not a de Polignac number, because 87901087 - 2¹⁹ = 87376799 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 (87901081) 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, 2313168 + ... + 2313205.

It is an arithmetic number, because the mean of its divisors is an integer number (23131870).

Almost surely, 2^87901087 is an apocalyptic number.

87901087 is a deficient number, since it is larger than the sum of its proper divisors (4626393).

87901087 is a wasteful number, since it uses less digits than its factorization.

87901087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626392.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 87901087 is about 9375.5579567298. The cubic root of 87901087 is about 444.6293037090.

The spelling of 87901087 in words is "eighty-seven million, nine hundred one thousand, eighty-seven".