1376939 has 2 divisors, whose sum is σ = 1376940. Its totient is φ = 1376938.

The previous prime is 1376929. The next prime is 1376957. The reversal of 1376939 is 9396731.

It is a weak prime.

It is an emirp because it is prime and its reverse (9396731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1376939 - 2⁴ = 1376923 is a prime.

It is a super-2 number, since 2×1376939² = 3791922019442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1376929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688469 + 688470.

It is an arithmetic number, because the mean of its divisors is an integer number (688470).

2^1376939 is an apocalyptic number.

1376939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376939 is an equidigital number, since it uses as much as digits as its factorization.

1376939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 38.

The square root of 1376939 is about 1173.4304410573. The cubic root of 1376939 is about 111.2512502490.

The spelling of 1376939 in words is "one million, three hundred seventy-six thousand, nine hundred thirty-nine".