87907071 has 16 divisors (see below), whose sum is σ = 134092800. Its totient is φ = 50180448.

The previous prime is 87907063. The next prime is 87907073. The reversal of 87907071 is 17070978.

It is a happy number.

It is not a de Polignac number, because 87907071 - 2³ = 87907063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87907073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28765 + ... + 31673.

It is an arithmetic number, because the mean of its divisors is an integer number (8380800).

Almost surely, 2^87907071 is an apocalyptic number.

87907071 is a deficient number, since it is larger than the sum of its proper divisors (46185729).

87907071 is a wasteful number, since it uses less digits than its factorization.

87907071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358.

The product of its (nonzero) digits is 24696, while the sum is 39.

The square root of 87907071 is about 9375.8770789724. The cubic root of 87907071 is about 444.6393930851.

The spelling of 87907071 in words is "eighty-seven million, nine hundred seven thousand, seventy-one".