2643049 has 4 divisors (see below), whose sum is σ = 2647120. Its totient is φ = 2638980.

The previous prime is 2643037. The next prime is 2643059. The reversal of 2643049 is 9403462.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9403462 = 2 ⋅4701731.

It is a cyclic number.

It is not a de Polignac number, because 2643049 - 2⁹ = 2642537 is a prime.

It is a Duffinian number.

2643049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2643019) 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, 819 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (661780).

2^2643049 is an apocalyptic number.

It is an amenable number.

2643049 is a deficient number, since it is larger than the sum of its proper divisors (4071).

2643049 is an equidigital number, since it uses as much as digits as its factorization.

2643049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2643049 is about 1625.7456750673. The cubic root of 2643049 is about 138.2616508989.

The spelling of 2643049 in words is "two million, six hundred forty-three thousand, forty-nine".