5191898 has 8 divisors (see below), whose sum is σ = 7857108. Its totient is φ = 2572864.

The previous prime is 5191873. The next prime is 5191909. The reversal of 5191898 is 8981915.

It can be written as a sum of positive squares in 2 ways, for example, as 4765489 + 426409 = 2183^2 + 653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11261 + ... + 11712.

Almost surely, 2^5191898 is an apocalyptic number.

5191898 is a deficient number, since it is larger than the sum of its proper divisors (2665210).

5191898 is a wasteful number, since it uses less digits than its factorization.

5191898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23088.

The product of its digits is 25920, while the sum is 41.

The square root of 5191898 is about 2278.5736766671. The cubic root of 5191898 is about 173.1577964862.

The spelling of 5191898 in words is "five million, one hundred ninety-one thousand, eight hundred ninety-eight".