86979670 has 8 divisors (see below), whose sum is σ = 156563424. Its totient is φ = 34791864.

The previous prime is 86979653. The next prime is 86979691. The reversal of 86979670 is 7697968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4348974 + ... + 4348993.

It is an arithmetic number, because the mean of its divisors is an integer number (19570428).

Almost surely, 2^86979670 is an apocalyptic number.

86979670 is a deficient number, since it is larger than the sum of its proper divisors (69583754).

86979670 is a wasteful number, since it uses less digits than its factorization.

86979670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697974.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 86979670 is about 9326.2891870240. The cubic root of 86979670 is about 443.0702448453.

The spelling of 86979670 in words is "eighty-six million, nine hundred seventy-nine thousand, six hundred seventy".