86607866 has 4 divisors (see below), whose sum is σ = 129911802. Its totient is φ = 43303932.

The previous prime is 86607863. The next prime is 86607901. The reversal of 86607866 is 66870668.

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., 81522841 + 5085025 = 9029^2 + 2255^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86607866.

It is not an unprimeable number, because it can be changed into a prime (86607863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21651965 + ... + 21651968.

Almost surely, 2^86607866 is an apocalyptic number.

86607866 is a deficient number, since it is larger than the sum of its proper divisors (43303936).

86607866 is a wasteful number, since it uses less digits than its factorization.

86607866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43303935.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 86607866 is about 9306.3347242617. The cubic root of 86607866 is about 442.4380259425.

The spelling of 86607866 in words is "eighty-six million, six hundred seven thousand, eight hundred sixty-six".