2104207 has 6 divisors (see below), whose sum is σ = 2447808. Its totient is φ = 1803564.

The previous prime is 2104181. The next prime is 2104213. The reversal of 2104207 is 7024012.

It is a de Polignac number, because none of the positive numbers 2^k-2104207 is a prime.

It is a Duffinian number.

2104207 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21423 + ... + 21520.

It is an arithmetic number, because the mean of its divisors is an integer number (407968).

2^2104207 is an apocalyptic number.

2104207 is a deficient number, since it is larger than the sum of its proper divisors (343601).

2104207 is an equidigital number, since it uses as much as digits as its factorization.

2104207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42957 (or 42950 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2104207 is about 1450.5885012642. The cubic root of 2104207 is about 128.1433736886.

Adding to 2104207 its reverse (7024012), we get a palindrome (9128219).

The spelling of 2104207 in words is "two million, one hundred four thousand, two hundred seven".