2204657 has 12 divisors (see below), whose sum is σ = 2762676. Its totient is φ = 1743840.

The previous prime is 2204651. The next prime is 2204659. The reversal of 2204657 is 7564022.

2204657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 379456 + 1825201 = 616^2 + 1351^2 .

It is not a de Polignac number, because 2204657 - 2¹⁰ = 2203633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2204651) 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 11 ways as a sum of consecutive naturals, for example, 1094 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (230223).

2^2204657 is an apocalyptic number.

It is an amenable number.

2204657 is a deficient number, since it is larger than the sum of its proper divisors (558019).

2204657 is a wasteful number, since it uses less digits than its factorization.

2204657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488 (or 3481 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2204657 is about 1484.8087418924. The cubic root of 2204657 is about 130.1508505281.

Adding to 2204657 its reverse (7564022), we get a palindrome (9768679).

The spelling of 2204657 in words is "two million, two hundred four thousand, six hundred fifty-seven".