1376980379 has 4 divisors (see below), whose sum is σ = 1378658400. Its totient is φ = 1375302360.

The previous prime is 1376980373. The next prime is 1376980387. The reversal of 1376980379 is 9730896731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1376980379 - 2²⁰ = 1375931803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1376980379.

It is not an unprimeable number, because it can be changed into a prime (1376980373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837779 + ... + 839420.

It is an arithmetic number, because the mean of its divisors is an integer number (344664600).

Almost surely, 2^1376980379 is an apocalyptic number.

1376980379 is a deficient number, since it is larger than the sum of its proper divisors (1678021).

1376980379 is an equidigital number, since it uses as much as digits as its factorization.

1376980379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678020.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The square root of 1376980379 is about 37107.6862523117. The cubic root of 1376980379 is about 1112.5236465790.

The spelling of 1376980379 in words is "one billion, three hundred seventy-six million, nine hundred eighty thousand, three hundred seventy-nine".