2812257 has 24 divisors (see below), whose sum is σ = 4742400. Its totient is φ = 1605240.

The previous prime is 2812241. The next prime is 2812261. The reversal of 2812257 is 7522182.

2812257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2812257 - 2⁴ = 2812241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2812257.

It is not an unprimeable number, because it can be changed into a prime (2812207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2632 + ... + 3542.

It is an arithmetic number, because the mean of its divisors is an integer number (197600).

2^2812257 is an apocalyptic number.

It is an amenable number.

2812257 is a deficient number, since it is larger than the sum of its proper divisors (1930143).

2812257 is an equidigital number, since it uses as much as digits as its factorization.

2812257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 921 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 2812257 is about 1676.9785329574. The cubic root of 2812257 is about 141.1513389394.

The spelling of 2812257 in words is "two million, eight hundred twelve thousand, two hundred fifty-seven".