87686079 has 32 divisors (see below), whose sum is σ = 128931264. Its totient is φ = 52684800.

The previous prime is 87686077. The next prime is 87686089. The reversal of 87686079 is 97068678.

It is a happy number.

It is not a de Polignac number, because 87686079 - 2¹ = 87686077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87686077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445009 + ... + 445205.

It is an arithmetic number, because the mean of its divisors is an integer number (4029102).

Almost surely, 2^87686079 is an apocalyptic number.

87686079 is a deficient number, since it is larger than the sum of its proper divisors (41245185).

87686079 is a wasteful number, since it uses less digits than its factorization.

87686079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 87686079 is about 9364.0845254622. The cubic root of 87686079 is about 444.2664833605.

The spelling of 87686079 in words is "eighty-seven million, six hundred eighty-six thousand, seventy-nine".