5657660 has 24 divisors (see below), whose sum is σ = 11926320. Its totient is φ = 2254464.

The previous prime is 5657657. The next prime is 5657671. The reversal of 5657660 is 667565.

Added to its reverse (667565) it gives a square (6325225 = 2515²).

It is a self number, because there is not a number n which added to its sum of digits gives 5657660.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8831 + ... + 9449.

It is an arithmetic number, because the mean of its divisors is an integer number (496930).

Almost surely, 2^5657660 is an apocalyptic number.

It is an amenable number.

5657660 is an abundant number, since it is smaller than the sum of its proper divisors (6268660).

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

5657660 is a wasteful number, since it uses less digits than its factorization.

5657660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 5657660 is about 2378.5836121524. The cubic root of 5657660 is about 178.1882030766.

Adding to 5657660 its reverse (667565), we get a square (6325225 = 2515²).

The spelling of 5657660 in words is "five million, six hundred fifty-seven thousand, six hundred sixty".