2704257 has 12 divisors (see below), whose sum is σ = 3924180. Its totient is φ = 1794528.

The previous prime is 2704253. The next prime is 2704277. The reversal of 2704257 is 7524072.

It can be written as a sum of positive squares in 2 ways, for example, as 147456 + 2556801 = 384^2 + 1599^2 .

It is not a de Polignac number, because 2704257 - 2² = 2704253 is a prime.

2704257 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2704257.

It is not an unprimeable number, because it can be changed into a prime (2704253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1863 + ... + 2979.

It is an arithmetic number, because the mean of its divisors is an integer number (327015).

2^2704257 is an apocalyptic number.

It is an amenable number.

2704257 is a deficient number, since it is larger than the sum of its proper divisors (1219923).

2704257 is a wasteful number, since it uses less digits than its factorization.

2704257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 2704257 is about 1644.4625261769. The cubic root of 2704257 is about 139.3208089646.

The spelling of 2704257 in words is "two million, seven hundred four thousand, two hundred fifty-seven".