5666685 has 8 divisors (see below), whose sum is σ = 9066720. Its totient is φ = 3022224.

The previous prime is 5666681. The next prime is 5666701. The reversal of 5666685 is 5866665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5666685 - 2² = 5666681 is a prime.

It is a super-2 number, since 2×5666685² = 64222637778450, which contains 22 as substring.

5666685 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188875 + ... + 188904.

It is an arithmetic number, because the mean of its divisors is an integer number (1133340).

Almost surely, 2^5666685 is an apocalyptic number.

It is an amenable number.

5666685 is a deficient number, since it is larger than the sum of its proper divisors (3400035).

5666685 is a wasteful number, since it uses less digits than its factorization.

5666685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377787.

The product of its digits is 259200, while the sum is 42.

The square root of 5666685 is about 2380.4799936147. The cubic root of 5666685 is about 178.2829003068.

The spelling of 5666685 in words is "five million, six hundred sixty-six thousand, six hundred eighty-five".