2879890 has 16 divisors (see below), whose sum is σ = 5582808. Its totient is φ = 1063296.

The previous prime is 2879879. The next prime is 2879893. The reversal of 2879890 is 989782.

It can be written as a sum of positive squares in 4 ways, for example, as 1022121 + 1857769 = 1011^2 + 1363^2 .

It is not an unprimeable number, because it can be changed into a prime (2879893) 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, 10947 + ... + 11206.

2^2879890 is an apocalyptic number.

2879890 is a deficient number, since it is larger than the sum of its proper divisors (2702918).

2879890 is a wasteful number, since it uses less digits than its factorization.

2879890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22173.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 2879890 is about 1697.0238654774. The cubic root of 2879890 is about 142.2739207757.

The spelling of 2879890 in words is "two million, eight hundred seventy-nine thousand, eight hundred ninety".