1279583 has 2 divisors, whose sum is σ = 1279584. Its totient is φ = 1279582.

The previous prime is 1279561. The next prime is 1279601. The reversal of 1279583 is 3859721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1279583 - 2⁶ = 1279519 is a prime.

It is a Chen prime.

It is equal to p₉₈₅₇₆ and since 1279583 and 98576 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1279183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639791 + 639792.

It is an arithmetic number, because the mean of its divisors is an integer number (639792).

2^1279583 is an apocalyptic number.

1279583 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279583 is an equidigital number, since it uses as much as digits as its factorization.

1279583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 1279583 is about 1131.1865451817. The cubic root of 1279583 is about 108.5649126316.

The spelling of 1279583 in words is "one million, two hundred seventy-nine thousand, five hundred eighty-three".