2979005 has 4 divisors (see below), whose sum is σ = 3574812. Its totient is φ = 2383200.

The previous prime is 2978999. The next prime is 2979013. The reversal of 2979005 is 5009792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 2229049 = 866^2 + 1493^2 .

It is not a de Polignac number, because 2979005 - 2⁸ = 2978749 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297896 + ... + 297905.

It is an arithmetic number, because the mean of its divisors is an integer number (893703).

2^2979005 is an apocalyptic number.

It is an amenable number.

2979005 is a deficient number, since it is larger than the sum of its proper divisors (595807).

2979005 is an equidigital number, since it uses as much as digits as its factorization.

2979005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595806.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 2979005 is about 1725.9794320907. The cubic root of 2979005 is about 143.8877243393.

The spelling of 2979005 in words is "two million, nine hundred seventy-nine thousand, five".