2604947 has 4 divisors (see below), whose sum is σ = 2608176. Its totient is φ = 2601720.

The previous prime is 2604913. The next prime is 2604949. The reversal of 2604947 is 7494062.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2604947 - 2²⁰ = 1556371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2604949) 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, 797 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (652044).

2^2604947 is an apocalyptic number.

2604947 is a deficient number, since it is larger than the sum of its proper divisors (3229).

2604947 is a wasteful number, since it uses less digits than its factorization.

2604947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2604947 is about 1613.9848202508. The cubic root of 2604947 is about 137.5940425524.

The spelling of 2604947 in words is "two million, six hundred four thousand, nine hundred forty-seven".