2799281 has 2 divisors, whose sum is σ = 2799282. Its totient is φ = 2799280.

The previous prime is 2799259. The next prime is 2799299. The reversal of 2799281 is 1829972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 43681 = 1660^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 2799281 - 2⁶ = 2799217 is a prime.

It is a super-2 number, since 2×2799281² = 15671948233922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2799211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399640 + 1399641.

It is an arithmetic number, because the mean of its divisors is an integer number (1399641).

2^2799281 is an apocalyptic number.

It is an amenable number.

2799281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2799281 is an equidigital number, since it uses as much as digits as its factorization.

2799281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 2799281 is about 1673.1051969317. The cubic root of 2799281 is about 140.9339093042.

The spelling of 2799281 in words is "two million, seven hundred ninety-nine thousand, two hundred eighty-one".