5598621 has 12 divisors (see below), whose sum is σ = 9242272. Its totient is φ = 3199176.

The previous prime is 5598617. The next prime is 5598623. The reversal of 5598621 is 1268955.

It is a happy number.

5598621 is a `hidden beast` number, since 5 + 598 + 62 + 1 = 666.

It is not a de Polignac number, because 5598621 - 2² = 5598617 is a prime.

It is a Duffinian number.

5598621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5598623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44371 + ... + 44496.

Almost surely, 2^5598621 is an apocalyptic number.

It is an amenable number.

5598621 is a deficient number, since it is larger than the sum of its proper divisors (3643651).

5598621 is a wasteful number, since it uses less digits than its factorization.

5598621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88880 (or 88877 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 5598621 is about 2366.1405283710. The cubic root of 5598621 is about 177.5662227278.

It can be divided in two parts, 559 and 8621, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 5598621 in words is "five million, five hundred ninety-eight thousand, six hundred twenty-one".