5921644 has 12 divisors (see below), whose sum is σ = 10972584. Its totient is φ = 2786624.

The previous prime is 5921639. The next prime is 5921677. The reversal of 5921644 is 4461295.

It is an Ulam 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, 43474 + ... + 43609.

It is an arithmetic number, because the mean of its divisors is an integer number (914382).

Almost surely, 2^5921644 is an apocalyptic number.

It is an amenable number.

5921644 is a deficient number, since it is larger than the sum of its proper divisors (5050940).

5921644 is a wasteful number, since it uses less digits than its factorization.

5921644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87104 (or 87102 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 5921644 is about 2433.4428285867. The cubic root of 5921644 is about 180.9175779305.

The spelling of 5921644 in words is "five million, nine hundred twenty-one thousand, six hundred forty-four".