5398898 has 18 divisors (see below), whose sum is σ = 8528877. Its totient is φ = 2563080.

The previous prime is 5398891. The next prime is 5398909. The reversal of 5398898 is 8988935.

It can be written as a sum of positive squares in 2 ways, for example, as 5121169 + 277729 = 2263^2 + 527^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1643.

It is a super-2 number, since 2×5398898² = 58296199228808, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5398891) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 101840 + ... + 101892.

Almost surely, 2^5398898 is an apocalyptic number.

5398898 is a deficient number, since it is larger than the sum of its proper divisors (3129979).

5398898 is an equidigital number, since it uses as much as digits as its factorization.

5398898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 86 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The square root of 5398898 is about 2323.5528829790. The cubic root of 5398898 is about 175.4291291566.

Multiplying 5398898 by its sum of digits (50), we get a square (269944900 = 16430²).

The spelling of 5398898 in words is "five million, three hundred ninety-eight thousand, eight hundred ninety-eight".