5657646 has 16 divisors (see below), whose sum is σ = 11471184. Its totient is φ = 1859904.

The previous prime is 5657629. The next prime is 5657657. The reversal of 5657646 is 6467565.

It is a super-2 number, since 2×5657646² = 64017916522632, which contains 22 as substring.

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, 6021 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (716949).

Almost surely, 2^5657646 is an apocalyptic number.

5657646 is an abundant number, since it is smaller than the sum of its proper divisors (5813538).

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

5657646 is a wasteful number, since it uses less digits than its factorization.

5657646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12995.

The product of its digits is 151200, while the sum is 39.

The square root of 5657646 is about 2378.5806692227. The cubic root of 5657646 is about 178.1880560997.

The spelling of 5657646 in words is "five million, six hundred fifty-seven thousand, six hundred forty-six".