1279949 has 4 divisors (see below), whose sum is σ = 1396320. Its totient is φ = 1163580.

The previous prime is 1279937. The next prime is 1279961. The reversal of 1279949 is 9499721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1279937) and next prime (1279961).

It is not a de Polignac number, because 1279949 - 2⁸ = 1279693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58169 + ... + 58190.

It is an arithmetic number, because the mean of its divisors is an integer number (349080).

2^1279949 is an apocalyptic number.

It is an amenable number.

1279949 is a deficient number, since it is larger than the sum of its proper divisors (116371).

1279949 is a wasteful number, since it uses less digits than its factorization.

1279949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116370.

The product of its digits is 40824, while the sum is 41.

The square root of 1279949 is about 1131.3483106453. The cubic root of 1279949 is about 108.5752626103.

The spelling of 1279949 in words is "one million, two hundred seventy-nine thousand, nine hundred forty-nine".