22322723 has 4 divisors (see below), whose sum is σ = 22456560. Its totient is φ = 22188888.

The previous prime is 22322693. The next prime is 22322747. The reversal of 22322723 is 32722322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32722322 = 2 ⋅16361161.

It is a cyclic number.

It is not a de Polignac number, because 22322723 - 2⁶ = 22322659 is a prime.

It is a super-3 number, since 3×22322723³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22322753) 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, 66668 + ... + 67001.

It is an arithmetic number, because the mean of its divisors is an integer number (5614140).

Almost surely, 2^22322723 is an apocalyptic number.

22322723 is a deficient number, since it is larger than the sum of its proper divisors (133837).

22322723 is a wasteful number, since it uses less digits than its factorization.

22322723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133836.

The product of its digits is 2016, while the sum is 23.

The square root of 22322723 is about 4724.6929000730. The cubic root of 22322723 is about 281.5674126361.

The spelling of 22322723 in words is "twenty-two million, three hundred twenty-two thousand, seven hundred twenty-three".