5666628 has 24 divisors (see below), whose sum is σ = 14424480. Its totient is φ = 1717120.

The previous prime is 5666623. The next prime is 5666641. The reversal of 5666628 is 8266665.

It is a super-2 number, since 2×5666628² = 64221345780768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666621) 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, 21333 + ... + 21596.

It is an arithmetic number, because the mean of its divisors is an integer number (601020).

Almost surely, 2^5666628 is an apocalyptic number.

It is an amenable number.

5666628 is an abundant number, since it is smaller than the sum of its proper divisors (8757852).

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

5666628 is a wasteful number, since it uses less digits than its factorization.

5666628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42947 (or 42945 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 5666628 is about 2380.4680212093. The cubic root of 5666628 is about 178.2823025346.

The spelling of 5666628 in words is "five million, six hundred sixty-six thousand, six hundred twenty-eight".