86326666 has 4 divisors (see below), whose sum is σ = 129490002. Its totient is φ = 43163332.

The previous prime is 86326657. The next prime is 86326687. The reversal of 86326666 is 66662368.

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., 74909025 + 11417641 = 8655^2 + 3379^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21581665 + ... + 21581668.

Almost surely, 2^86326666 is an apocalyptic number.

86326666 is a deficient number, since it is larger than the sum of its proper divisors (43163336).

86326666 is a wasteful number, since it uses less digits than its factorization.

86326666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43163335.

The product of its digits is 373248, while the sum is 43.

The square root of 86326666 is about 9291.2144523738. The cubic root of 86326666 is about 441.9586681525.

The spelling of 86326666 in words is "eighty-six million, three hundred twenty-six thousand, six hundred sixty-six".