279080969 has 2 divisors, whose sum is σ = 279080970. Its totient is φ = 279080968.

The previous prime is 279080957. The next prime is 279081031. The reversal of 279080969 is 969080972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278890000 + 190969 = 16700^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 279080969 - 2⁴ = 279080953 is a prime.

It is a super-2 number, since 2×279080969² = 155772374515957922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (279080909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139540484 + 139540485.

It is an arithmetic number, because the mean of its divisors is an integer number (139540485).

Almost surely, 2^279080969 is an apocalyptic number.

It is an amenable number.

279080969 is a deficient number, since it is larger than the sum of its proper divisors (1).

279080969 is an equidigital number, since it uses as much as digits as its factorization.

279080969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 279080969 is about 16705.7166562827. The cubic root of 279080969 is about 653.4967128944.

The spelling of 279080969 in words is "two hundred seventy-nine million, eighty thousand, nine hundred sixty-nine".