7086664 has 16 divisors (see below), whose sum is σ = 14309820. Its totient is φ = 3270720.

The previous prime is 7086661. The next prime is 7086679. The reversal of 7086664 is 4666807.

It can be written as a sum of positive squares in 2 ways, for example, as 5098564 + 1988100 = 2258^2 + 1410^2 .

It is not an unprimeable number, because it can be changed into a prime (7086661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33967 + ... + 34174.

Almost surely, 2^7086664 is an apocalyptic number.

It is an amenable number.

7086664 is an abundant number, since it is smaller than the sum of its proper divisors (7223156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7086664 is a wasteful number, since it uses less digits than its factorization.

7086664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68160 (or 68156 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 7086664 is about 2662.0788868852. The cubic root of 7086664 is about 192.0793219702.

It can be divided in two parts, 7086 and 664, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 7086664 in words is "seven million, eighty-six thousand, six hundred sixty-four".