87015378 has 16 divisors (see below), whose sum is σ = 174139200. Its totient is φ = 28987056.

The previous prime is 87015373. The next prime is 87015403. The reversal of 87015378 is 87351078.

It is not an unprimeable number, because it can be changed into a prime (87015373) 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, 9048 + ... + 15996.

It is an arithmetic number, because the mean of its divisors is an integer number (10883700).

Almost surely, 2^87015378 is an apocalyptic number.

87015378 is an abundant number, since it is smaller than the sum of its proper divisors (87123822).

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

87015378 is a wasteful number, since it uses less digits than its factorization.

87015378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 87015378 is about 9328.2033639924. The cubic root of 87015378 is about 443.1308681601.

The spelling of 87015378 in words is "eighty-seven million, fifteen thousand, three hundred seventy-eight".