2789631 has 24 divisors (see below), whose sum is σ = 4398576. Its totient is φ = 1693440.

The previous prime is 2789629. The next prime is 2789669. The reversal of 2789631 is 1369872.

It is not a de Polignac number, because 2789631 - 2¹ = 2789629 is a prime.

It is a super-2 number, since 2×2789631² = 15564082232322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789621) 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 23 ways as a sum of consecutive naturals, for example, 13116 + ... + 13326.

It is an arithmetic number, because the mean of its divisors is an integer number (183274).

2^2789631 is an apocalyptic number.

2789631 is a deficient number, since it is larger than the sum of its proper divisors (1608945).

2789631 is a wasteful number, since it uses less digits than its factorization.

2789631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2789631 is about 1670.2188479358. The cubic root of 2789631 is about 140.7717750489.

The spelling of 2789631 in words is "two million, seven hundred eighty-nine thousand, six hundred thirty-one".