2247791 has 16 divisors (see below), whose sum is σ = 2931264. Its totient is φ = 1672704.

The previous prime is 2247737. The next prime is 2247793. The reversal of 2247791 is 1977422.

2247791 = 95² + 96² + ... + 196².

2247791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2247791 - 2⁶ = 2247727 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247793) 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 15 ways as a sum of consecutive naturals, for example, 821 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (183204).

2^2247791 is an apocalyptic number.

2247791 is a deficient number, since it is larger than the sum of its proper divisors (683473).

2247791 is a wasteful number, since it uses less digits than its factorization.

2247791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490.

The product of its digits is 7056, while the sum is 32.

The square root of 2247791 is about 1499.2634858490. The cubic root of 2247791 is about 130.9941725745.

The spelling of 2247791 in words is "two million, two hundred forty-seven thousand, seven hundred ninety-one".