2813890 has 16 divisors (see below), whose sum is σ = 5173632. Its totient is φ = 1101424.

The previous prime is 2813879. The next prime is 2813897. The reversal of 2813890 is 983182.

It is not an unprimeable number, because it can be changed into a prime (2813897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524 + ... + 3463.

It is an arithmetic number, because the mean of its divisors is an integer number (323352).

2^2813890 is an apocalyptic number.

2813890 is a deficient number, since it is larger than the sum of its proper divisors (2359742).

2813890 is a wasteful number, since it uses less digits than its factorization.

2813890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6041.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2813890 is about 1677.4653498657. The cubic root of 2813890 is about 141.1786545482.

The spelling of 2813890 in words is "two million, eight hundred thirteen thousand, eight hundred ninety".