1373890079 has 2 divisors, whose sum is σ = 1373890080. Its totient is φ = 1373890078.

The previous prime is 1373890061. The next prime is 1373890081. The reversal of 1373890079 is 9700983731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1373890079 - 2²⁴ = 1357112863 is a prime.

Together with 1373890081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373890099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686945039 + 686945040.

It is an arithmetic number, because the mean of its divisors is an integer number (686945040).

Almost surely, 2^1373890079 is an apocalyptic number.

1373890079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373890079 is an equidigital number, since it uses as much as digits as its factorization.

1373890079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 1373890079 is about 37066.0232423172. The cubic root of 1373890079 is about 1111.6907596250.

The spelling of 1373890079 in words is "one billion, three hundred seventy-three million, eight hundred ninety thousand, seventy-nine".