4247723 has 8 divisors (see below), whose sum is σ = 4378416. Its totient is φ = 4118400.

The previous prime is 4247707. The next prime is 4247729. The reversal of 4247723 is 3277424.

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 4247723 - 2⁴ = 4247707 is a prime.

It is a d-powerful number, because it can be written as 4³ + 2⁹ + 4¹¹ + 7² + 7³ + 2¹⁵ + 3⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247729) 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, 12668 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (547302).

Almost surely, 2^4247723 is an apocalyptic number.

4247723 is a deficient number, since it is larger than the sum of its proper divisors (130693).

4247723 is a wasteful number, since it uses less digits than its factorization.

4247723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its digits is 9408, while the sum is 29.

The square root of 4247723 is about 2061.0004852013. Note that the first 3 decimals coincide. The cubic root of 4247723 is about 161.9516570684.

Subtracting from 4247723 its reverse (3277424), we obtain a cube (970299 = 99³).

The spelling of 4247723 in words is "four million, two hundred forty-seven thousand, seven hundred twenty-three".