86668385 has 16 divisors (see below), whose sum is σ = 107870400. Its totient is φ = 66768576.

The previous prime is 86668369. The next prime is 86668391. The reversal of 86668385 is 58386668.

It is a cyclic number.

It is not a de Polignac number, because 86668385 - 2⁴ = 86668369 is a prime.

It is a super-2 number, since 2×86668385² = 15022817917016450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95102 + ... + 96008.

It is an arithmetic number, because the mean of its divisors is an integer number (6741900).

Almost surely, 2^86668385 is an apocalyptic number.

It is an amenable number.

86668385 is a deficient number, since it is larger than the sum of its proper divisors (21202015).

86668385 is a wasteful number, since it uses less digits than its factorization.

86668385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its digits is 1658880, while the sum is 50.

The square root of 86668385 is about 9309.5856513596. The cubic root of 86668385 is about 442.5410561244.

The spelling of 86668385 in words is "eighty-six million, six hundred sixty-eight thousand, three hundred eighty-five".