86685879 has 8 divisors (see below), whose sum is σ = 132092800. Its totient is φ = 49534776.

The previous prime is 86685877. The next prime is 86685881. The reversal of 86685879 is 97858668.

It is an interprime number because it is at equal distance from previous prime (86685877) and next prime (86685881).

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

It is not a de Polignac number, because 86685879 - 2¹ = 86685877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86685871) 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, 2063929 + ... + 2063970.

It is an arithmetic number, because the mean of its divisors is an integer number (16511600).

Almost surely, 2^86685879 is an apocalyptic number.

86685879 is a deficient number, since it is larger than the sum of its proper divisors (45406921).

86685879 is a wasteful number, since it uses less digits than its factorization.

86685879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127909.

The product of its digits is 5806080, while the sum is 57.

The square root of 86685879 is about 9310.5251731575. The cubic root of 86685879 is about 442.5708297356.

The spelling of 86685879 in words is "eighty-six million, six hundred eighty-five thousand, eight hundred seventy-nine".