86646806 has 16 divisors (see below), whose sum is σ = 134025408. Its totient is φ = 41987400.

The previous prime is 86646799. The next prime is 86646811. The reversal of 86646806 is 60864668.

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, 7421 + ... + 15111.

It is an arithmetic number, because the mean of its divisors is an integer number (8376588).

Almost surely, 2^86646806 is an apocalyptic number.

86646806 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

86646806 is a deficient number, since it is larger than the sum of its proper divisors (47378602).

86646806 is a wasteful number, since it uses less digits than its factorization.

86646806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7867.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 86646806 is about 9308.4266124840. The cubic root of 86646806 is about 442.5043245984.

The spelling of 86646806 in words is "eighty-six million, six hundred forty-six thousand, eight hundred six".