1273879 has 2 divisors, whose sum is σ = 1273880. Its totient is φ = 1273878.

The previous prime is 1273843. The next prime is 1273889. The reversal of 1273879 is 9783721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1273879 - 2⁹ = 1273367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636939 + 636940.

It is an arithmetic number, because the mean of its divisors is an integer number (636940).

2^1273879 is an apocalyptic number.

1273879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273879 is an equidigital number, since it uses as much as digits as its factorization.

1273879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 1273879 is about 1128.6624827644. The cubic root of 1273879 is about 108.4033556511.

The spelling of 1273879 in words is "one million, two hundred seventy-three thousand, eight hundred seventy-nine".