2879990 has 16 divisors (see below), whose sum is σ = 5363280. Its totient is φ = 1112160.

The previous prime is 2879971. The next prime is 2879999. The reversal of 2879990 is 999782.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2879999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4676 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (335205).

2^2879990 is an apocalyptic number.

2879990 is a deficient number, since it is larger than the sum of its proper divisors (2483290).

2879990 is a wasteful number, since it uses less digits than its factorization.

2879990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9967.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 2879990 is about 1697.0533285669. The cubic root of 2879990 is about 142.2755675084.

The spelling of 2879990 in words is "two million, eight hundred seventy-nine thousand, nine hundred ninety".