1373952379 has 2 divisors, whose sum is σ = 1373952380. Its totient is φ = 1373952378.

The previous prime is 1373952367. The next prime is 1373952397. The reversal of 1373952379 is 9732593731.

Together with next prime (1373952397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1373952379 - 2⁵ = 1373952347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373952319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686976189 + 686976190.

It is an arithmetic number, because the mean of its divisors is an integer number (686976190).

Almost surely, 2^1373952379 is an apocalyptic number.

1373952379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373952379 is an equidigital number, since it uses as much as digits as its factorization.

1373952379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1071630, while the sum is 49.

The square root of 1373952379 is about 37066.8636250762. The cubic root of 1373952379 is about 1111.7075628343.

The spelling of 1373952379 in words is "one billion, three hundred seventy-three million, nine hundred fifty-two thousand, three hundred seventy-nine".