4022723 has 4 divisors (see below), whose sum is σ = 4197648. Its totient is φ = 3847800.

The previous prime is 4022719. The next prime is 4022741. The reversal of 4022723 is 3272204.

It is a happy number.

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 4022723 - 2² = 4022719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4022695 and 4022704.

It is not an unprimeable number, because it can be changed into a prime (4022773) 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, 87428 + ... + 87473.

It is an arithmetic number, because the mean of its divisors is an integer number (1049412).

Almost surely, 2^4022723 is an apocalyptic number.

4022723 is a deficient number, since it is larger than the sum of its proper divisors (174925).

4022723 is a wasteful number, since it uses less digits than its factorization.

4022723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174924.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 4022723 is about 2005.6727051042. The cubic root of 4022723 is about 159.0401254162.

Adding to 4022723 its reverse (3272204), we get a palindrome (7294927).

It can be divided in two parts, 402 and 2723, that added together give a 5-th power (3125 = 5⁵).

The spelling of 4022723 in words is "four million, twenty-two thousand, seven hundred twenty-three".