2815893 has 12 divisors (see below), whose sum is σ = 4137120. Its totient is φ = 1845096.

The previous prime is 2815889. The next prime is 2815903. The reversal of 2815893 is 3985182.

It is not a de Polignac number, because 2815893 - 2² = 2815889 is a prime.

It is an Ulam number.

2815893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2815843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2121 + ... + 3182.

It is an arithmetic number, because the mean of its divisors is an integer number (344760).

2^2815893 is an apocalyptic number.

It is an amenable number.

2815893 is a deficient number, since it is larger than the sum of its proper divisors (1321227).

2815893 is a wasteful number, since it uses less digits than its factorization.

2815893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368 (or 5365 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 2815893 is about 1678.0622753641. The cubic root of 2815893 is about 141.2121448143.

The spelling of 2815893 in words is "two million, eight hundred fifteen thousand, eight hundred ninety-three".