2647249 has 4 divisors (see below), whose sum is σ = 2887920. Its totient is φ = 2406580.

The previous prime is 2647243. The next prime is 2647259. The reversal of 2647249 is 9427462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2647249 - 2¹⁹ = 2122961 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2647243) 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, 120319 + ... + 120340.

It is an arithmetic number, because the mean of its divisors is an integer number (721980).

2^2647249 is an apocalyptic number.

It is an amenable number.

2647249 is a deficient number, since it is larger than the sum of its proper divisors (240671).

2647249 is a wasteful number, since it uses less digits than its factorization.

2647249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240670.

The product of its digits is 24192, while the sum is 34.

The square root of 2647249 is about 1627.0368772711. The cubic root of 2647249 is about 138.3348481310.

The spelling of 2647249 in words is "two million, six hundred forty-seven thousand, two hundred forty-nine".