2788313 has 16 divisors (see below), whose sum is σ = 3234816. Its totient is φ = 2378640.

The previous prime is 2788309. The next prime is 2788327. The reversal of 2788313 is 3138872.

It is not a de Polignac number, because 2788313 - 2² = 2788309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2788313.

It is not an unprimeable number, because it can be changed into a prime (2788333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26006 + ... + 26112.

It is an arithmetic number, because the mean of its divisors is an integer number (202176).

2^2788313 is an apocalyptic number.

2788313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2788313 is a deficient number, since it is larger than the sum of its proper divisors (446503).

2788313 is a wasteful number, since it uses less digits than its factorization.

2788313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its digits is 8064, while the sum is 32.

The square root of 2788313 is about 1669.8242422483. The cubic root of 2788313 is about 140.7496016949.

The spelling of 2788313 in words is "two million, seven hundred eighty-eight thousand, three hundred thirteen".