2791568 has 20 divisors (see below), whose sum is σ = 5825148. Its totient is φ = 1288320.

The previous prime is 2791561. The next prime is 2791577. The reversal of 2791568 is 8651972.

It can be written as a sum of positive squares in 2 ways, for example, as 1607824 + 1183744 = 1268^2 + 1088^2 .

It is not an unprimeable number, because it can be changed into a prime (2791561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6503 + ... + 6918.

2^2791568 is an apocalyptic number.

It is an amenable number.

2791568 is an abundant number, since it is smaller than the sum of its proper divisors (3033580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2791568 is a wasteful number, since it uses less digits than its factorization.

2791568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13442 (or 13436 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 2791568 is about 1670.7986114430. The cubic root of 2791568 is about 140.8043494696.

The spelling of 2791568 in words is "two million, seven hundred ninety-one thousand, five hundred sixty-eight".