4223739 has 8 divisors (see below), whose sum is σ = 6064912. Its totient is φ = 2599200.

The previous prime is 4223717. The next prime is 4223741. The reversal of 4223739 is 9373224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4223739 - 2¹¹ = 4221691 is a prime.

It is a super-2 number, since 2×4223739² = 35679942280242, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4223759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54112 + ... + 54189.

It is an arithmetic number, because the mean of its divisors is an integer number (758114).

Almost surely, 2^4223739 is an apocalyptic number.

4223739 is a deficient number, since it is larger than the sum of its proper divisors (1841173).

4223739 is a wasteful number, since it uses less digits than its factorization.

4223739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108317.

The product of its digits is 9072, while the sum is 30.

The square root of 4223739 is about 2055.1737152854. The cubic root of 4223739 is about 161.6462713256.

The spelling of 4223739 in words is "four million, two hundred twenty-three thousand, seven hundred thirty-nine".