5668669 has 16 divisors (see below), whose sum is σ = 6239680. Its totient is φ = 5132160.

The previous prime is 5668639. The next prime is 5668673. The reversal of 5668669 is 9668665.

It is a cyclic number.

It is not a de Polignac number, because 5668669 - 2¹¹ = 5666621 is a prime.

It is a super-2 number, since 2×5668669² = 64267616463122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5668609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77617 + ... + 77689.

It is an arithmetic number, because the mean of its divisors is an integer number (389980).

Almost surely, 2^5668669 is an apocalyptic number.

5668669 is the 1273-rd nonagonal number.

It is an amenable number.

5668669 is a deficient number, since it is larger than the sum of its proper divisors (571011).

5668669 is a wasteful number, since it uses less digits than its factorization.

5668669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220.

The product of its digits is 466560, while the sum is 46.

The square root of 5668669 is about 2380.8966798246. The cubic root of 5668669 is about 178.3037044749.

The spelling of 5668669 in words is "five million, six hundred sixty-eight thousand, six hundred sixty-nine".