2004397 has 4 divisors (see below), whose sum is σ = 2012956. Its totient is φ = 1995840.

The previous prime is 2004383. The next prime is 2004421. The reversal of 2004397 is 7934002.

2004397 is nontrivially palindromic in base 4.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 206116 = 1341^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004397 - 2⁷ = 2004269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3918 + ... + 4399.

It is an arithmetic number, because the mean of its divisors is an integer number (503239).

2^2004397 is an apocalyptic number.

It is an amenable number.

2004397 is a deficient number, since it is larger than the sum of its proper divisors (8559).

2004397 is an equidigital number, since it uses as much as digits as its factorization.

2004397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8558.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2004397 is about 1415.7672831366. The cubic root of 2004397 is about 126.0843686229.

Adding to 2004397 its reverse (7934002), we get a palindrome (9938399).

It can be divided in two parts, 2004 and 397, that added together give a 4-th power (2401 = 7⁴).

The spelling of 2004397 in words is "two million, four thousand, three hundred ninety-seven".