4239723 has 8 divisors (see below), whose sum is σ = 5721408. Its totient is φ = 2792264.

The previous prime is 4239721. The next prime is 4239727. The reversal of 4239723 is 3279324.

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

It is a cyclic number.

It is not a de Polignac number, because 4239723 - 2¹ = 4239721 is a prime.

It is a super-2 number, since 2×4239723² = 35950502233458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4239721) 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, 8265 + ... + 8762.

It is an arithmetic number, because the mean of its divisors is an integer number (715176).

Almost surely, 2^4239723 is an apocalyptic number.

4239723 is a deficient number, since it is larger than the sum of its proper divisors (1481685).

4239723 is a wasteful number, since it uses less digits than its factorization.

4239723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17113.

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

The square root of 4239723 is about 2059.0587655528. The cubic root of 4239723 is about 161.8499219758.

The spelling of 4239723 in words is "four million, two hundred thirty-nine thousand, seven hundred twenty-three".