1039955279 has 4 divisors (see below), whose sum is σ = 1134496680. Its totient is φ = 945413880.

The previous prime is 1039955261. The next prime is 1039955309. The reversal of 1039955279 is 9725599301.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1039955279 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 (1039955209) 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, 47270684 + ... + 47270705.

It is an arithmetic number, because the mean of its divisors is an integer number (283624170).

Almost surely, 2^1039955279 is an apocalyptic number.

1039955279 is a deficient number, since it is larger than the sum of its proper divisors (94541401).

1039955279 is an equidigital number, since it uses as much as digits as its factorization.

1039955279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94541400.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 1039955279 is about 32248.3376160695. The cubic root of 1039955279 is about 1013.1448813358.

The spelling of 1039955279 in words is "one billion, thirty-nine million, nine hundred fifty-five thousand, two hundred seventy-nine".