1398297613 has 2 divisors, whose sum is σ = 1398297614. Its totient is φ = 1398297612.

The previous prime is 1398297577. The next prime is 1398297653. The reversal of 1398297613 is 3167928931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 758561764 + 639735849 = 27542^2 + 25293^2 .

It is an emirp because it is prime and its reverse (3167928931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1398297613 - 2⁹ = 1398297101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1398297653) by changing a digit.

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 as a sum of consecutive naturals, namely, 699148806 + 699148807.

It is an arithmetic number, because the mean of its divisors is an integer number (699148807).

Almost surely, 2^1398297613 is an apocalyptic number.

It is an amenable number.

1398297613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398297613 is an equidigital number, since it uses as much as digits as its factorization.

1398297613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 1398297613 is about 37393.8178446652. The cubic root of 1398297613 is about 1118.2353197096.

The spelling of 1398297613 in words is "one billion, three hundred ninety-eight million, two hundred ninety-seven thousand, six hundred thirteen".