1598297898 has 64 divisors (see below), whose sum is σ = 3427937280. Its totient is φ = 496707120.

The previous prime is 1598297893. The next prime is 1598297927. The reversal of 1598297898 is 8987928951.

It is not an unprimeable number, because it can be changed into a prime (1598297893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2921661 + ... + 2922207.

It is an arithmetic number, because the mean of its divisors is an integer number (53561520).

Almost surely, 2^1598297898 is an apocalyptic number.

1598297898 is an abundant number, since it is smaller than the sum of its proper divisors (1829639382).

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

1598297898 is an equidigital number, since it uses as much as digits as its factorization.

1598297898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 642 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 66.

The square root of 1598297898 is about 39978.7180634897. The cubic root of 1598297898 is about 1169.1922000899.

The spelling of 1598297898 in words is "one billion, five hundred ninety-eight million, two hundred ninety-seven thousand, eight hundred ninety-eight".