4022791 has 4 divisors (see below), whose sum is σ = 4049584. Its totient is φ = 3996000.

The previous prime is 4022783. The next prime is 4022803. The reversal of 4022791 is 1972204.

4022791 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.

It is a cyclic number.

It is not a de Polignac number, because 4022791 - 2³ = 4022783 is a prime.

It is a Duffinian number.

4022791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022701) 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, 13170 + ... + 13471.

It is an arithmetic number, because the mean of its divisors is an integer number (1012396).

Almost surely, 2^4022791 is an apocalyptic number.

4022791 is a deficient number, since it is larger than the sum of its proper divisors (26793).

4022791 is a wasteful number, since it uses less digits than its factorization.

4022791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26792.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 4022791 is about 2005.6896569509. The cubic root of 4022791 is about 159.0410215478.

Adding to 4022791 its reverse (1972204), we get a palindrome (5994995).

The spelling of 4022791 in words is "four million, twenty-two thousand, seven hundred ninety-one".