5666690 has 16 divisors (see below), whose sum is σ = 10247040. Its totient is φ = 2256240.

The previous prime is 5666681. The next prime is 5666701. The reversal of 5666690 is 966665.

It is a super-2 number, since 2×5666690² = 64222751112200, 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, 1205 + ... + 3575.

It is an arithmetic number, because the mean of its divisors is an integer number (640440).

Almost surely, 2^5666690 is an apocalyptic number.

5666690 is a deficient number, since it is larger than the sum of its proper divisors (4580350).

5666690 is a wasteful number, since it uses less digits than its factorization.

5666690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 5666690 is about 2380.4810438229. The cubic root of 5666690 is about 178.2829527427.

The spelling of 5666690 in words is "five million, six hundred sixty-six thousand, six hundred ninety".