2797257 has 4 divisors (see below), whose sum is σ = 3729680. Its totient is φ = 1864836.

The previous prime is 2797247. The next prime is 2797259. The reversal of 2797257 is 7527972.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2797257 - 2⁴ = 2797241 is a prime.

It is a D-number.

It is the 1673-rd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2797259) by changing a digit.

It is a nontrivial repunit in base 1672.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466207 + ... + 466212.

It is an arithmetic number, because the mean of its divisors is an integer number (932420).

2^2797257 is an apocalyptic number.

It is an amenable number.

2797257 is a deficient number, since it is larger than the sum of its proper divisors (932423).

2797257 is an equidigital number, since it uses as much as digits as its factorization.

2797257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932422.

The product of its digits is 61740, while the sum is 39.

The square root of 2797257 is about 1672.5002242152. The cubic root of 2797257 is about 140.8999340311.

The spelling of 2797257 in words is "two million, seven hundred ninety-seven thousand, two hundred fifty-seven".