5598918 has 48 divisors (see below), whose sum is σ = 13287456. Its totient is φ = 1693440.

The previous prime is 5598917. The next prime is 5598947. The reversal of 5598918 is 8198955.

5598918 is a `hidden beast` number, since 559 + 8 + 91 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5598917) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 16446 + ... + 16782.

It is an arithmetic number, because the mean of its divisors is an integer number (276822).

Almost surely, 2^5598918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5598918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6643728).

5598918 is an abundant number, since it is smaller than the sum of its proper divisors (7688538).

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

5598918 is a wasteful number, since it uses less digits than its factorization.

5598918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 426 counting only the distinct ones).

The product of its digits is 129600, while the sum is 45.

The square root of 5598918 is about 2366.2032879700. The cubic root of 5598918 is about 177.5693625627.

The spelling of 5598918 in words is "five million, five hundred ninety-eight thousand, nine hundred eighteen".