2722457 has 2 divisors, whose sum is σ = 2722458. Its totient is φ = 2722456.

The previous prime is 2722439. The next prime is 2722469. The reversal of 2722457 is 7542272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1413721 + 1308736 = 1189^2 + 1144^2 .

It is a cyclic number.

It is not a de Polignac number, because 2722457 - 2¹⁴ = 2706073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2722417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361228 + 1361229.

It is an arithmetic number, because the mean of its divisors is an integer number (1361229).

2^2722457 is an apocalyptic number.

It is an amenable number.

2722457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722457 is an equidigital number, since it uses as much as digits as its factorization.

2722457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 29.

The square root of 2722457 is about 1649.9869696455. The cubic root of 2722457 is about 139.6326594414.

The spelling of 2722457 in words is "two million, seven hundred twenty-two thousand, four hundred fifty-seven".