1297094879 has 4 divisors (see below), whose sum is σ = 1314863376. Its totient is φ = 1279326384.

The previous prime is 1297094863. The next prime is 1297094893. The reversal of 1297094879 is 9784907921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1297094879 - 2⁴ = 1297094863 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 (1297094809) 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, 8884139 + ... + 8884284.

It is an arithmetic number, because the mean of its divisors is an integer number (328715844).

Almost surely, 2^1297094879 is an apocalyptic number.

1297094879 is a deficient number, since it is larger than the sum of its proper divisors (17768497).

1297094879 is an equidigital number, since it uses as much as digits as its factorization.

1297094879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17768496.

The product of its (nonzero) digits is 2286144, while the sum is 56.

The square root of 1297094879 is about 36015.2034424353. The cubic root of 1297094879 is about 1090.5792950789.

The spelling of 1297094879 in words is "one billion, two hundred ninety-seven million, ninety-four thousand, eight hundred seventy-nine".