2708257 has 2 divisors, whose sum is σ = 2708258. Its totient is φ = 2708256.

The previous prime is 2708249. The next prime is 2708261. The reversal of 2708257 is 7528072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2692881 + 15376 = 1641^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 2708257 - 2³ = 2708249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2708267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1354128 + 1354129.

It is an arithmetic number, because the mean of its divisors is an integer number (1354129).

2^2708257 is an apocalyptic number.

It is an amenable number.

2708257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2708257 is an equidigital number, since it uses as much as digits as its factorization.

2708257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 2708257 is about 1645.6782796160. The cubic root of 2708257 is about 139.3894672187.

The spelling of 2708257 in words is "two million, seven hundred eight thousand, two hundred fifty-seven".