87638082 has 16 divisors (see below), whose sum is σ = 200315712. Its totient is φ = 25039440.

The previous prime is 87638021. The next prime is 87638101. The reversal of 87638082 is 28083678.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2086621 = 87638082 / (8 + 7 + 6 + 3 + 8 + 0 + 8 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043269 + ... + 1043352.

It is an arithmetic number, because the mean of its divisors is an integer number (12519732).

Almost surely, 2^87638082 is an apocalyptic number.

87638082 is an abundant number, since it is smaller than the sum of its proper divisors (112677630).

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

87638082 is a wasteful number, since it uses less digits than its factorization.

87638082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086633.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 87638082 is about 9361.5213507207. The cubic root of 87638082 is about 444.1854087267.

The spelling of 87638082 in words is "eighty-seven million, six hundred thirty-eight thousand, eighty-two".