2604647 has 2 divisors, whose sum is σ = 2604648. Its totient is φ = 2604646.

The previous prime is 2604617. The next prime is 2604661. The reversal of 2604647 is 7464062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2604647 - 2⁶ = 2604583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2604617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302323 + 1302324.

It is an arithmetic number, because the mean of its divisors is an integer number (1302324).

2^2604647 is an apocalyptic number.

2604647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604647 is an equidigital number, since it uses as much as digits as its factorization.

2604647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 2604647 is about 1613.8918798978. The cubic root of 2604647 is about 137.5887603211.

The spelling of 2604647 in words is "two million, six hundred four thousand, six hundred forty-seven".