2204651 has 2 divisors, whose sum is σ = 2204652. Its totient is φ = 2204650.

The previous prime is 2204647. The next prime is 2204659. The reversal of 2204651 is 1564022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2204651 - 2² = 2204647 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2204659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102325 + 1102326.

It is an arithmetic number, because the mean of its divisors is an integer number (1102326).

2^2204651 is an apocalyptic number.

2204651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204651 is an equidigital number, since it uses as much as digits as its factorization.

2204651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2204651 is about 1484.8067214288. The cubic root of 2204651 is about 130.1507324589.

Adding to 2204651 its reverse (1564022), we get a palindrome (3768673).

The spelling of 2204651 in words is "two million, two hundred four thousand, six hundred fifty-one".