4221759 has 4 divisors (see below), whose sum is σ = 5629016. Its totient is φ = 2814504.

The previous prime is 4221751. The next prime is 4221761. The reversal of 4221759 is 9571224.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4221759 - 2³ = 4221751 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703624 + ... + 703629.

It is an arithmetic number, because the mean of its divisors is an integer number (1407254).

Almost surely, 2^4221759 is an apocalyptic number.

4221759 is a deficient number, since it is larger than the sum of its proper divisors (1407257).

4221759 is a wasteful number, since it uses less digits than its factorization.

4221759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407256.

The product of its digits is 5040, while the sum is 30.

The square root of 4221759 is about 2054.6919477138. The cubic root of 4221759 is about 161.6210085870.

The spelling of 4221759 in words is "four million, two hundred twenty-one thousand, seven hundred fifty-nine".