2438647 has 4 divisors (see below), whose sum is σ = 2480040. Its totient is φ = 2397256.

The previous prime is 2438629. The next prime is 2438671. The reversal of 2438647 is 7468342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2438647 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 (2438617) 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, 20608 + ... + 20725.

It is an arithmetic number, because the mean of its divisors is an integer number (620010).

2^2438647 is an apocalyptic number.

2438647 is a deficient number, since it is larger than the sum of its proper divisors (41393).

2438647 is an equidigital number, since it uses as much as digits as its factorization.

2438647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41392.

The product of its digits is 32256, while the sum is 34.

The square root of 2438647 is about 1561.6167903810. The cubic root of 2438647 is about 134.6014215470.

The spelling of 2438647 in words is "two million, four hundred thirty-eight thousand, six hundred forty-seven".