1320883979 has 8 divisors (see below), whose sum is σ = 1358956608. Its totient is φ = 1282936320.

The previous prime is 1320883939. The next prime is 1320884011. The reversal of 1320883979 is 9793880231.

It is a happy number.

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 1320883979 - 2²⁴ = 1304106763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320883919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9587 + ... + 52284.

It is an arithmetic number, because the mean of its divisors is an integer number (169869576).

Almost surely, 2^1320883979 is an apocalyptic number.

1320883979 is a deficient number, since it is larger than the sum of its proper divisors (38072629).

1320883979 is an equidigital number, since it uses as much as digits as its factorization.

1320883979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62485.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 1320883979 is about 36343.9675737254. The cubic root of 1320883979 is about 1097.2061272496.

The spelling of 1320883979 in words is "one billion, three hundred twenty million, eight hundred eighty-three thousand, nine hundred seventy-nine".