5621790 has 16 divisors (see below), whose sum is σ = 13492368. Its totient is φ = 1499136.

The previous prime is 5621779. The next prime is 5621809. The reversal of 5621790 is 971265.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 187393 = 5621790 / (5 + 6 + 2 + 1 + 7 + 9 + 0).

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, 93667 + ... + 93726.

It is an arithmetic number, because the mean of its divisors is an integer number (843273).

Almost surely, 2^5621790 is an apocalyptic number.

5621790 is an abundant number, since it is smaller than the sum of its proper divisors (7870578).

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

5621790 is a wasteful number, since it uses less digits than its factorization.

5621790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187403.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 5621790 is about 2371.0314211330. The cubic root of 5621790 is about 177.8108287798.

The spelling of 5621790 in words is "five million, six hundred twenty-one thousand, seven hundred ninety".