86800857 has 32 divisors (see below), whose sum is σ = 140676480. Its totient is φ = 46878720.

The previous prime is 86800849. The next prime is 86800867. The reversal of 86800857 is 75800868.

It is a happy number.

It is not a de Polignac number, because 86800857 - 2³ = 86800849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86800867) 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, 8953 + ... + 15929.

It is an arithmetic number, because the mean of its divisors is an integer number (4396140).

Almost surely, 2^86800857 is an apocalyptic number.

86800857 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

86800857 is a deficient number, since it is larger than the sum of its proper divisors (53875623).

86800857 is a wasteful number, since it uses less digits than its factorization.

86800857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 86800857 is about 9316.6977518861. The cubic root of 86800857 is about 442.7664149454.

The spelling of 86800857 in words is "eighty-six million, eight hundred thousand, eight hundred fifty-seven".