2648647 has 4 divisors (see below), whose sum is σ = 2652336. Its totient is φ = 2644960.

The previous prime is 2648629. The next prime is 2648669. The reversal of 2648647 is 7468462.

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 2648647 - 2¹¹ = 2646599 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 6⁶ + 4² + 8³ + 6⁸ + 4⁸ + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2648677) 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, 379 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (663084).

2^2648647 is an apocalyptic number.

2648647 is a deficient number, since it is larger than the sum of its proper divisors (3689).

2648647 is an equidigital number, since it uses as much as digits as its factorization.

2648647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688.

The product of its digits is 64512, while the sum is 37.

The square root of 2648647 is about 1627.4664359058. The cubic root of 2648647 is about 138.3591951776.

It can be divided in two parts, 264 and 8647, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 2648647 in words is "two million, six hundred forty-eight thousand, six hundred forty-seven".