1279943 has 8 divisors (see below), whose sum is σ = 1481088. Its totient is φ = 1083384.

The previous prime is 1279937. The next prime is 1279961. The reversal of 1279943 is 3499721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1279943 - 2⁸ = 1279687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521 + ... + 1682.

It is an arithmetic number, because the mean of its divisors is an integer number (185136).

2^1279943 is an apocalyptic number.

1279943 is a deficient number, since it is larger than the sum of its proper divisors (201145).

1279943 is an equidigital number, since it uses as much as digits as its factorization.

1279943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293.

The product of its digits is 13608, while the sum is 35.

The square root of 1279943 is about 1131.3456589389. The cubic root of 1279943 is about 108.5750929544.

It can be divided in two parts, 1279 and 943, that added together give a palindrome (2222).

The spelling of 1279943 in words is "one million, two hundred seventy-nine thousand, nine hundred forty-three".