5621889 has 16 divisors (see below), whose sum is σ = 9226112. Its totient is φ = 2965248.

The previous prime is 5621873. The next prime is 5621899. The reversal of 5621889 is 9881265.

It is not a de Polignac number, because 5621889 - 2⁴ = 5621873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (5621809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10024 + ... + 10569.

It is an arithmetic number, because the mean of its divisors is an integer number (576632).

Almost surely, 2^5621889 is an apocalyptic number.

It is an amenable number.

5621889 is a deficient number, since it is larger than the sum of its proper divisors (3604223).

5621889 is a wasteful number, since it uses less digits than its factorization.

5621889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20616.

The product of its digits is 34560, while the sum is 39.

The square root of 5621889 is about 2371.0522980314. The cubic root of 5621889 is about 177.8118725262.

It can be divided in two parts, 56 and 21889, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 5621889 in words is "five million, six hundred twenty-one thousand, eight hundred eighty-nine".