4242723 has 4 divisors (see below), whose sum is σ = 5656968. Its totient is φ = 2828480.

The previous prime is 4242713. The next prime is 4242751. The reversal of 4242723 is 3272424.

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 4242723 - 2⁶ = 4242659 is a prime.

It is a D-number.

4242723 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4242693 and 4242702.

It is not an unprimeable number, because it can be changed into a prime (4242713) 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, 707118 + ... + 707123.

It is an arithmetic number, because the mean of its divisors is an integer number (1414242).

Almost surely, 2^4242723 is an apocalyptic number.

4242723 is a deficient number, since it is larger than the sum of its proper divisors (1414245).

4242723 is a wasteful number, since it uses less digits than its factorization.

4242723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414244.

The product of its digits is 2688, while the sum is 24.

The square root of 4242723 is about 2059.7871249233. The cubic root of 4242723 is about 161.8880876207. Note that the first 3 decimals are identical.

Subtracting from 4242723 its reverse (3272424), we obtain a cube (970299 = 99³).

The spelling of 4242723 in words is "four million, two hundred forty-two thousand, seven hundred twenty-three".