1373839 has 2 divisors, whose sum is σ = 1373840. Its totient is φ = 1373838.

The previous prime is 1373819. The next prime is 1373843. The reversal of 1373839 is 9383731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1373839 - 2¹⁵ = 1341071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373819) 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, 686919 + 686920.

It is an arithmetic number, because the mean of its divisors is an integer number (686920).

2^1373839 is an apocalyptic number.

1373839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373839 is an equidigital number, since it uses as much as digits as its factorization.

1373839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 1373839 is about 1172.1087833473. The cubic root of 1373839 is about 111.1676982502.

The spelling of 1373839 in words is "one million, three hundred seventy-three thousand, eight hundred thirty-nine".