86803865 has 16 divisors (see below), whose sum is σ = 105627648. Its totient is φ = 68475456.

The previous prime is 86803861. The next prime is 86803867. The reversal of 86803865 is 56830868.

It is a cyclic number.

It is not a de Polignac number, because 86803865 - 2² = 86803861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86803861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141299 + ... + 141911.

It is an arithmetic number, because the mean of its divisors is an integer number (6601728).

Almost surely, 2^86803865 is an apocalyptic number.

It is an amenable number.

86803865 is a deficient number, since it is larger than the sum of its proper divisors (18823783).

86803865 is a wasteful number, since it uses less digits than its factorization.

86803865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 86803865 is about 9316.8591810760. The cubic root of 86803865 is about 442.7715294341.

The spelling of 86803865 in words is "eighty-six million, eight hundred three thousand, eight hundred sixty-five".