2807990 has 16 divisors (see below), whose sum is σ = 5080752. Its totient is φ = 1117344.

The previous prime is 2807977. The next prime is 2808007. The reversal of 2807990 is 997082.

It is a self number, because there is not a number n which added to its sum of digits gives 2807990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652 + ... + 2888.

It is an arithmetic number, because the mean of its divisors is an integer number (317547).

2^2807990 is an apocalyptic number.

2807990 is a deficient number, since it is larger than the sum of its proper divisors (2272762).

2807990 is a wasteful number, since it uses less digits than its factorization.

2807990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 2807990 is about 1675.7058214376. The cubic root of 2807990 is about 141.0799137891.

The spelling of 2807990 in words is "two million, eight hundred seven thousand, nine hundred ninety".