2691913 has 12 divisors (see below), whose sum is σ = 3162132. Its totient is φ = 2284800.

The previous prime is 2691911. The next prime is 2691917. The reversal of 2691913 is 3191962.

It can be written as a sum of positive squares in 2 ways, for example, as 2286144 + 405769 = 1512^2 + 637^2 .

It is not a de Polignac number, because 2691913 - 2¹ = 2691911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2691911) 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, 6513 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (263511).

2^2691913 is an apocalyptic number.

It is an amenable number.

2691913 is a deficient number, since it is larger than the sum of its proper divisors (470219).

2691913 is a wasteful number, since it uses less digits than its factorization.

2691913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 545 counting only the distinct ones).

The product of its digits is 2916, while the sum is 31.

The square root of 2691913 is about 1640.7050313813. The cubic root of 2691913 is about 139.1085017948.

The spelling of 2691913 in words is "two million, six hundred ninety-one thousand, nine hundred thirteen".