2604923 has 4 divisors (see below), whose sum is σ = 2611560. Its totient is φ = 2598288.

The previous prime is 2604913. The next prime is 2604949. The reversal of 2604923 is 3294062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3294062 = 2 ⋅1647031.

It is a cyclic number.

It is not a de Polignac number, because 2604923 - 2⁴ = 2604907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2604892 and 2604901.

It is not an unprimeable number, because it can be changed into a prime (2604913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690 + ... + 3527.

It is an arithmetic number, because the mean of its divisors is an integer number (652890).

2^2604923 is an apocalyptic number.

2604923 is a deficient number, since it is larger than the sum of its proper divisors (6637).

2604923 is an equidigital number, since it uses as much as digits as its factorization.

2604923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2604923 is about 1613.9773852195. The cubic root of 2604923 is about 137.5936199888.

Adding to 2604923 its reverse (3294062), we get a palindrome (5898985).

The spelling of 2604923 in words is "two million, six hundred four thousand, nine hundred twenty-three".