4228791 has 16 divisors (see below), whose sum is σ = 6528000. Its totient is φ = 2384928.

The previous prime is 4228789. The next prime is 4228793. The reversal of 4228791 is 1978224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4228789) and next prime (4228793).

It is not a de Polignac number, because 4228791 - 2¹ = 4228789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385 + ... + 2933.

It is an arithmetic number, because the mean of its divisors is an integer number (408000).

Almost surely, 2^4228791 is an apocalyptic number.

4228791 is a deficient number, since it is larger than the sum of its proper divisors (2299209).

4228791 is a wasteful number, since it uses less digits than its factorization.

4228791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638.

The product of its digits is 8064, while the sum is 33.

The square root of 4228791 is about 2056.4024411579. The cubic root of 4228791 is about 161.7106938343.

The spelling of 4228791 in words is "four million, two hundred twenty-eight thousand, seven hundred ninety-one".