86600666 has 4 divisors (see below), whose sum is σ = 129901002. Its totient is φ = 43300332.

The previous prime is 86600659. The next prime is 86600671. The reversal of 86600666 is 66600668.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71893441 + 14707225 = 8479^2 + 3835^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21650165 + ... + 21650168.

Almost surely, 2^86600666 is an apocalyptic number.

86600666 is a deficient number, since it is larger than the sum of its proper divisors (43300336).

86600666 is a wasteful number, since it uses less digits than its factorization.

86600666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43300335.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 86600666 is about 9305.9478829402. The cubic root of 86600666 is about 442.4257651544.

The spelling of 86600666 in words is "eighty-six million, six hundred thousand, six hundred sixty-six".