279049961 has 4 divisors (see below), whose sum is σ = 291182592. Its totient is φ = 266917332.

The previous prime is 279049937. The next prime is 279049987. The reversal of 279049961 is 169940972.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 279049961 - 2²² = 274855657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (279049921) 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, 6066281 + ... + 6066326.

It is an arithmetic number, because the mean of its divisors is an integer number (72795648).

Almost surely, 2^279049961 is an apocalyptic number.

It is an amenable number.

279049961 is a deficient number, since it is larger than the sum of its proper divisors (12132631).

279049961 is a wasteful number, since it uses less digits than its factorization.

279049961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132630.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 279049961 is about 16704.7885649594. The cubic root of 279049961 is about 653.4725091938.

The spelling of 279049961 in words is "two hundred seventy-nine million, forty-nine thousand, nine hundred sixty-one".