2697281 has 2 divisors, whose sum is σ = 2697282. Its totient is φ = 2697280.

The previous prime is 2697269. The next prime is 2697301. The reversal of 2697281 is 1827962.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2356225 + 341056 = 1535^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 2697281 - 2¹⁰ = 2696257 is a prime.

It is a super-2 number, since 2×2697281² = 14550649585922, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2697241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1348640 + 1348641.

It is an arithmetic number, because the mean of its divisors is an integer number (1348641).

2^2697281 is an apocalyptic number.

It is an amenable number.

2697281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2697281 is an equidigital number, since it uses as much as digits as its factorization.

2697281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 2697281 is about 1642.3400987615. The cubic root of 2697281 is about 139.2009067905.

The spelling of 2697281 in words is "two million, six hundred ninety-seven thousand, two hundred eighty-one".