1279673 has 2 divisors, whose sum is σ = 1279674. Its totient is φ = 1279672.

The previous prime is 1279667. The next prime is 1279679. The reversal of 1279673 is 3769721.

It is a balanced prime because it is at equal distance from previous prime (1279667) and next prime (1279679).

It can be written as a sum of positive squares in only one way, i.e., 1075369 + 204304 = 1037^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 1279673 - 2⁴ = 1279657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1279679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639836 + 639837.

It is an arithmetic number, because the mean of its divisors is an integer number (639837).

2^1279673 is an apocalyptic number.

It is an amenable number.

1279673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279673 is an equidigital number, since it uses as much as digits as its factorization.

1279673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 1279673 is about 1131.2263257191. The cubic root of 1279673 is about 108.5674578913.

The spelling of 1279673 in words is "one million, two hundred seventy-nine thousand, six hundred seventy-three".