1598845979 has 2 divisors, whose sum is σ = 1598845980. Its totient is φ = 1598845978.

The previous prime is 1598845967. The next prime is 1598845981. The reversal of 1598845979 is 9795488951.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1598845979 - 2²⁰ = 1597797403 is a prime.

Together with 1598845981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1598845949) 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 as a sum of consecutive naturals, namely, 799422989 + 799422990.

It is an arithmetic number, because the mean of its divisors is an integer number (799422990).

Almost surely, 2^1598845979 is an apocalyptic number.

1598845979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1598845979 is an equidigital number, since it uses as much as digits as its factorization.

1598845979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 65.

The square root of 1598845979 is about 39985.5721354591. The cubic root of 1598845979 is about 1169.3258294959.

The spelling of 1598845979 in words is "one billion, five hundred ninety-eight million, eight hundred forty-five thousand, nine hundred seventy-nine".