2822257 has 4 divisors (see below), whose sum is σ = 2828196. Its totient is φ = 2816320.

The previous prime is 2822233. The next prime is 2822263. The reversal of 2822257 is 7522282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 2337841 = 696^2 + 1529^2 .

It is a cyclic number.

It is not a de Polignac number, because 2822257 - 2⁷ = 2822129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2822207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188 + ... + 3229.

It is an arithmetic number, because the mean of its divisors is an integer number (707049).

2^2822257 is an apocalyptic number.

It is an amenable number.

2822257 is a deficient number, since it is larger than the sum of its proper divisors (5939).

2822257 is an equidigital number, since it uses as much as digits as its factorization.

2822257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938.

The product of its digits is 4480, while the sum is 28.

The square root of 2822257 is about 1679.9574399371. The cubic root of 2822257 is about 141.3184459567.

The spelling of 2822257 in words is "two million, eight hundred twenty-two thousand, two hundred fifty-seven".