2204671 has 4 divisors (see below), whose sum is σ = 2519632. Its totient is φ = 1889712.

The previous prime is 2204669. The next prime is 2204677. The reversal of 2204671 is 1764022.

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

It is a cyclic number.

It is not a de Polignac number, because 2204671 - 2¹ = 2204669 is a prime.

It is a Duffinian number.

2204671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204677) 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, 157470 + ... + 157483.

It is an arithmetic number, because the mean of its divisors is an integer number (629908).

2^2204671 is an apocalyptic number.

2204671 is a deficient number, since it is larger than the sum of its proper divisors (314961).

2204671 is an equidigital number, since it uses as much as digits as its factorization.

2204671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314960.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2204671 is about 1484.8134562968. The cubic root of 2204671 is about 130.1511260219.

Adding to 2204671 its reverse (1764022), we get a palindrome (3968693).

The spelling of 2204671 in words is "two million, two hundred four thousand, six hundred seventy-one".