2504647 has 4 divisors (see below), whose sum is σ = 2509960. Its totient is φ = 2499336.

The previous prime is 2504639. The next prime is 2504657. The reversal of 2504647 is 7464052.

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 2504647 - 2³ = 2504639 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 (2504657) 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, 1872 + ... + 2917.

It is an arithmetic number, because the mean of its divisors is an integer number (627490).

2^2504647 is an apocalyptic number.

2504647 is a deficient number, since it is larger than the sum of its proper divisors (5313).

2504647 is an equidigital number, since it uses as much as digits as its factorization.

2504647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2504647 is about 1582.6076582653. The cubic root of 2504647 is about 135.8049214374.

Adding to 2504647 its reverse (7464052), we get a palindrome (9968699).

The spelling of 2504647 in words is "two million, five hundred four thousand, six hundred forty-seven".