86666668 has 24 divisors (see below), whose sum is σ = 172650240. Its totient is φ = 37680720.

The previous prime is 86666641. The next prime is 86666677.

86666668 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×86666668² = 15022222684444448, which contains 22 as substring.

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, 41808 + ... + 43831.

It is an arithmetic number, because the mean of its divisors is an integer number (7193760).

Almost surely, 2^86666668 is an apocalyptic number.

It is an amenable number.

86666668 is a deficient number, since it is larger than the sum of its proper divisors (85983572).

86666668 is a wasteful number, since it uses less digits than its factorization.

86666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85677 (or 85675 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 86666668 is about 9309.4934341241. The cubic root of 86666668 is about 442.5381336900.

The spelling of 86666668 in words is "eighty-six million, six hundred sixty-six thousand, six hundred sixty-eight".