2237791 has 4 divisors (see below), whose sum is σ = 2240784. Its totient is φ = 2234800.

The previous prime is 2237789. The next prime is 2237813. The reversal of 2237791 is 1977322.

2237791 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1977322 = 2 ⋅988661.

It is a cyclic number.

It is not a de Polignac number, because 2237791 - 2¹ = 2237789 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2237701) 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, 726 + ... + 2236.

It is an arithmetic number, because the mean of its divisors is an integer number (560196).

2^2237791 is an apocalyptic number.

2237791 is a deficient number, since it is larger than the sum of its proper divisors (2993).

2237791 is a wasteful number, since it uses less digits than its factorization.

2237791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992.

The product of its digits is 5292, while the sum is 31.

The square root of 2237791 is about 1495.9247975751. The cubic root of 2237791 is about 130.7996276335.

The spelling of 2237791 in words is "two million, two hundred thirty-seven thousand, seven hundred ninety-one".