2822749 has 4 divisors (see below), whose sum is σ = 2858560. Its totient is φ = 2786940.

The previous prime is 2822741. The next prime is 2822761. The reversal of 2822749 is 9472282.

2822749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 2822749 - 2³ = 2822741 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 (2822741) 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 in 3 ways as a sum of consecutive naturals, for example, 17787 + ... + 17944.

It is an arithmetic number, because the mean of its divisors is an integer number (714640).

2^2822749 is an apocalyptic number.

It is an amenable number.

2822749 is a deficient number, since it is larger than the sum of its proper divisors (35811).

2822749 is an equidigital number, since it uses as much as digits as its factorization.

2822749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35810.

The product of its digits is 16128, while the sum is 34.

The square root of 2822749 is about 1680.1038658369. The cubic root of 2822749 is about 141.3266574266.

The spelling of 2822749 in words is "two million, eight hundred twenty-two thousand, seven hundred forty-nine".