86787670 has 16 divisors (see below), whose sum is σ = 156386880. Its totient is φ = 34677504.

The previous prime is 86787667. The next prime is 86787683. The reversal of 86787670 is 7678768.

It is a congruent number.

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, 6214 + ... + 14566.

It is an arithmetic number, because the mean of its divisors is an integer number (9774180).

Almost surely, 2^86787670 is an apocalyptic number.

86787670 is a deficient number, since it is larger than the sum of its proper divisors (69599210).

86787670 is a wasteful number, since it uses less digits than its factorization.

86787670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9399.

The product of its (nonzero) digits is 790272, while the sum is 49.

The square root of 86787670 is about 9315.9900171694. The cubic root of 86787670 is about 442.7439917551.

The spelling of 86787670 in words is "eighty-six million, seven hundred eighty-seven thousand, six hundred seventy".