279798983 has 2 divisors, whose sum is σ = 279798984. Its totient is φ = 279798982.

The previous prime is 279798947. The next prime is 279799019. The reversal of 279798983 is 389897972.

It is a balanced prime because it is at equal distance from previous prime (279798947) and next prime (279799019).

It is a cyclic number.

It is not a de Polignac number, because 279798983 - 2²⁶ = 212690119 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279798913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139899491 + 139899492.

It is an arithmetic number, because the mean of its divisors is an integer number (139899492).

Almost surely, 2^279798983 is an apocalyptic number.

279798983 is a deficient number, since it is larger than the sum of its proper divisors (1).

279798983 is an equidigital number, since it uses as much as digits as its factorization.

279798983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 62.

The square root of 279798983 is about 16727.1929205112. The cubic root of 279798983 is about 654.0566674300.

The spelling of 279798983 in words is "two hundred seventy-nine million, seven hundred ninety-eight thousand, nine hundred eighty-three".