279484489 has 4 divisors (see below), whose sum is σ = 282851856. Its totient is φ = 276117124.

The previous prime is 279484487. The next prime is 279484507. The reversal of 279484489 is 984484972.

It is a happy number.

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 279484489 - 2¹ = 279484487 is a prime.

It is a super-2 number, since 2×279484489² = 156223159183182242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (279484483) 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, 1683559 + ... + 1683724.

It is an arithmetic number, because the mean of its divisors is an integer number (70712964).

Almost surely, 2^279484489 is an apocalyptic number.

It is an amenable number.

279484489 is a deficient number, since it is larger than the sum of its proper divisors (3367367).

279484489 is an equidigital number, since it uses as much as digits as its factorization.

279484489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367366.

The product of its digits is 4644864, while the sum is 55.

The square root of 279484489 is about 16717.7895967140. The cubic root of 279484489 is about 653.8115223723.

The spelling of 279484489 in words is "two hundred seventy-nine million, four hundred eighty-four thousand, four hundred eighty-nine".