87699678 has 16 divisors (see below), whose sum is σ = 191344896. Its totient is φ = 26575640.

The previous prime is 87699643. The next prime is 87699679.

87699678 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87699679) 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, 664326 + ... + 664457.

It is an arithmetic number, because the mean of its divisors is an integer number (11959056).

Almost surely, 2^87699678 is an apocalyptic number.

87699678 is an abundant number, since it is smaller than the sum of its proper divisors (103645218).

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

87699678 is a wasteful number, since it uses less digits than its factorization.

87699678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328799.

The product of its digits is 9144576, while the sum is 60.

The square root of 87699678 is about 9364.8106227515. The cubic root of 87699678 is about 444.2894488744.

The spelling of 87699678 in words is "eighty-seven million, six hundred ninety-nine thousand, six hundred seventy-eight".