5621646 has 8 divisors (see below), whose sum is σ = 11243304. Its totient is φ = 1873880.

The previous prime is 5621617. The next prime is 5621653. The reversal of 5621646 is 6461265.

5621646 = 1184² + 1185² + ... + 1187².

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

5621646 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468465 + ... + 468476.

It is an arithmetic number, because the mean of its divisors is an integer number (1405413).

Almost surely, 2^5621646 is an apocalyptic number.

5621646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5621646 is a wasteful number, since it uses less digits than its factorization.

5621646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936946.

The product of its digits is 8640, while the sum is 30.

The square root of 5621646 is about 2371.0010544072. The cubic root of 5621646 is about 177.8093105814.

The spelling of 5621646 in words is "five million, six hundred twenty-one thousand, six hundred forty-six".