2679009 has 4 divisors (see below), whose sum is σ = 3572016. Its totient is φ = 1786004.

The previous prime is 2678993. The next prime is 2679031. The reversal of 2679009 is 9009762.

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 2679009 - 2⁴ = 2678993 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2679709) 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, 446499 + ... + 446504.

It is an arithmetic number, because the mean of its divisors is an integer number (893004).

2^2679009 is an apocalyptic number.

It is an amenable number.

2679009 is a deficient number, since it is larger than the sum of its proper divisors (893007).

2679009 is an equidigital number, since it uses as much as digits as its factorization.

2679009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893006.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 2679009 is about 1636.7678515904. The cubic root of 2679009 is about 138.8858680469.

The spelling of 2679009 in words is "two million, six hundred seventy-nine thousand, nine".