5198409 has 6 divisors (see below), whose sum is σ = 7508826. Its totient is φ = 3465600.

The previous prime is 5198387. The next prime is 5198423. The reversal of 5198409 is 9048915.

It can be written as a sum of positive squares in only one way, i.e., 5198400 + 9 = 2280^2 + 3^2 .

It is not a de Polignac number, because 5198409 - 2⁵ = 5198377 is a prime.

It is a super-2 number, since 2×5198409² = 54046912262562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5198429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288792 + ... + 288809.

It is an arithmetic number, because the mean of its divisors is an integer number (1251471).

Almost surely, 2^5198409 is an apocalyptic number.

It is an amenable number.

5198409 is a deficient number, since it is larger than the sum of its proper divisors (2310417).

5198409 is a wasteful number, since it uses less digits than its factorization.

5198409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577607 (or 577604 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 5198409 is about 2280.0019736834. The cubic root of 5198409 is about 173.2301502092.

The spelling of 5198409 in words is "five million, one hundred ninety-eight thousand, four hundred nine".