1398798339 has 8 divisors (see below), whose sum is σ = 1865378640. Its totient is φ = 932375136.

The previous prime is 1398798319. The next prime is 1398798367. The reversal of 1398798339 is 9338978931.

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

It is not a de Polignac number, because 1398798339 - 2⁷ = 1398798211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1398798319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16632 + ... + 55445.

It is an arithmetic number, because the mean of its divisors is an integer number (233172330).

Almost surely, 2^1398798339 is an apocalyptic number.

1398798339 is a deficient number, since it is larger than the sum of its proper divisors (466580301).

1398798339 is an equidigital number, since it uses as much as digits as its factorization.

1398798339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78549.

The product of its digits is 8817984, while the sum is 60.

The square root of 1398798339 is about 37400.5125499638. The cubic root of 1398798339 is about 1118.3687826363.

The spelling of 1398798339 in words is "one billion, three hundred ninety-eight million, seven hundred ninety-eight thousand, three hundred thirty-nine".