5656646 has 8 divisors (see below), whose sum is σ = 8495280. Its totient is φ = 2824888.

The previous prime is 5656621. The next prime is 5656649. The reversal of 5656646 is 6466565.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700 + ... + 3768.

It is an arithmetic number, because the mean of its divisors is an integer number (1061910).

Almost surely, 2^5656646 is an apocalyptic number.

5656646 is a deficient number, since it is larger than the sum of its proper divisors (2838634).

5656646 is a wasteful number, since it uses less digits than its factorization.

5656646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438.

The product of its digits is 129600, while the sum is 38.

The square root of 5656646 is about 2378.3704505396. The cubic root of 5656646 is about 178.1775571186.

The spelling of 5656646 in words is "five million, six hundred fifty-six thousand, six hundred forty-six".