1279089 has 24 divisors (see below), whose sum is σ = 2146560. Its totient is φ = 718848.

The previous prime is 1279087. The next prime is 1279093. The reversal of 1279089 is 9809721.

1279089 = T₁₃₉ + T₁₄₀ + ... + T₂₁₇.

It is a happy number.

It is not a de Polignac number, because 1279089 - 2¹ = 1279087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4849 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (89440).

2^1279089 is an apocalyptic number.

It is an amenable number.

1279089 is a deficient number, since it is larger than the sum of its proper divisors (867471).

1279089 is a wasteful number, since it uses less digits than its factorization.

1279089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1279089 is about 1130.9681693134. The cubic root of 1279089 is about 108.5509398582.

It can be divided in two parts, 127 and 9089, that added together give a square (9216 = 96²).

The spelling of 1279089 in words is "one million, two hundred seventy-nine thousand, eighty-nine".