87869140 has 24 divisors (see below), whose sum is σ = 184740192. Its totient is φ = 35106720.

The previous prime is 87869137. The next prime is 87869143. The reversal of 87869140 is 4196878.

It is an interprime number because it is at equal distance from previous prime (87869137) and next prime (87869143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87869143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19807 + ... + 23833.

It is an arithmetic number, because the mean of its divisors is an integer number (7697508).

Almost surely, 2^87869140 is an apocalyptic number.

It is an amenable number.

87869140 is an abundant number, since it is smaller than the sum of its proper divisors (96871052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87869140 is a wasteful number, since it uses less digits than its factorization.

87869140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5127 (or 5125 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 87869140 is about 9373.8540632976. The cubic root of 87869140 is about 444.5754314379.

The spelling of 87869140 in words is "eighty-seven million, eight hundred sixty-nine thousand, one hundred forty".