279489113 has 2 divisors, whose sum is σ = 279489114. Its totient is φ = 279489112.

The previous prime is 279489101. The next prime is 279489127. The reversal of 279489113 is 311984972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271491529 + 7997584 = 16477^2 + 2828^2 .

It is a cyclic number.

It is not a de Polignac number, because 279489113 - 2⁴ = 279489097 is a prime.

It is a super-2 number, since 2×279489113² = 156228328571053538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (279489173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139744556 + 139744557.

It is an arithmetic number, because the mean of its divisors is an integer number (139744557).

Almost surely, 2^279489113 is an apocalyptic number.

It is an amenable number.

279489113 is a deficient number, since it is larger than the sum of its proper divisors (1).

279489113 is an equidigital number, since it uses as much as digits as its factorization.

279489113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 279489113 is about 16717.9278919368. The cubic root of 279489113 is about 653.8151280677.

The spelling of 279489113 in words is "two hundred seventy-nine million, four hundred eighty-nine thousand, one hundred thirteen".