2445647 has 2 divisors, whose sum is σ = 2445648. Its totient is φ = 2445646.

The previous prime is 2445629. The next prime is 2445649. The reversal of 2445647 is 7465442.

2445647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2445647 is a prime.

Together with 2445649, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₇₉₃₈₄ and since 2445647 and 179384 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2445649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222823 + 1222824.

It is an arithmetic number, because the mean of its divisors is an integer number (1222824).

2^2445647 is an apocalyptic number.

2445647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445647 is an equidigital number, since it uses as much as digits as its factorization.

2445647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 32.

The square root of 2445647 is about 1563.8564512128. The cubic root of 2445647 is about 134.7300871370.

The spelling of 2445647 in words is "two million, four hundred forty-five thousand, six hundred forty-seven".