2791331 has 2 divisors, whose sum is σ = 2791332. Its totient is φ = 2791330.

The previous prime is 2791297. The next prime is 2791339. The reversal of 2791331 is 1331972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2791331 - 2⁶ = 2791267 is a prime.

It is a super-2 number, since 2×2791331² = 15583057503122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2791331.

It is not a weakly prime, because it can be changed into another prime (2791339) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395665 + 1395666.

It is an arithmetic number, because the mean of its divisors is an integer number (1395666).

2^2791331 is an apocalyptic number.

2791331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791331 is an equidigital number, since it uses as much as digits as its factorization.

2791331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 26.

The square root of 2791331 is about 1670.7276857705. The cubic root of 2791331 is about 140.8003646631.

The spelling of 2791331 in words is "two million, seven hundred ninety-one thousand, three hundred thirty-one".