1279479 has 8 divisors (see below), whose sum is σ = 1795840. Its totient is φ = 808056.

The previous prime is 1279459. The next prime is 1279483. The reversal of 1279479 is 9749721.

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

It is not a de Polignac number, because 1279479 - 2¹⁵ = 1246711 is a prime.

It is a super-2 number, since 2×1279479² = 3274133022882, which contains 22 as substring.

It is a Duffinian number.

1279479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11167 + ... + 11280.

It is an arithmetic number, because the mean of its divisors is an integer number (224480).

2^1279479 is an apocalyptic number.

1279479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1279479 is a deficient number, since it is larger than the sum of its proper divisors (516361).

1279479 is a wasteful number, since it uses less digits than its factorization.

1279479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22469.

The product of its digits is 31752, while the sum is 39.

The square root of 1279479 is about 1131.1405748182. The cubic root of 1279479 is about 108.5619712940.

The spelling of 1279479 in words is "one million, two hundred seventy-nine thousand, four hundred seventy-nine".