5881621 has 4 divisors (see below), whose sum is σ = 6191200. Its totient is φ = 5572044.

The previous prime is 5881607. The next prime is 5881633. The reversal of 5881621 is 1261885.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5881621 - 2¹⁵ = 5848853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5881021) 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, 154761 + ... + 154798.

It is an arithmetic number, because the mean of its divisors is an integer number (1547800).

Almost surely, 2^5881621 is an apocalyptic number.

It is an amenable number.

5881621 is a deficient number, since it is larger than the sum of its proper divisors (309579).

5881621 is a wasteful number, since it uses less digits than its factorization.

5881621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309578.

The product of its digits is 3840, while the sum is 31.

The square root of 5881621 is about 2425.2053521300. The cubic root of 5881621 is about 180.5090630624.

It can be divided in two parts, 588 and 1621, that added together give a square (2209 = 47²).

The spelling of 5881621 in words is "five million, eight hundred eighty-one thousand, six hundred twenty-one".