22723969 has 4 divisors (see below), whose sum is σ = 22746880. Its totient is φ = 22701060.

The previous prime is 22723949. The next prime is 22723973. The reversal of 22723969 is 96932722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22723969 - 2⁵ = 22723937 is a prime.

It is a super-2 number, since 2×22723969² = 1032757534225922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22723949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9897 + ... + 11974.

It is an arithmetic number, because the mean of its divisors is an integer number (5686720).

Almost surely, 2^22723969 is an apocalyptic number.

It is an amenable number.

22723969 is a deficient number, since it is larger than the sum of its proper divisors (22911).

22723969 is a wasteful number, since it uses less digits than its factorization.

22723969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22910.

The product of its digits is 81648, while the sum is 40.

The square root of 22723969 is about 4766.9664357954. The cubic root of 22723969 is about 283.2444416262.

It can be divided in two parts, 2272 and 3969, that added together give a square (6241 = 79²).

The spelling of 22723969 in words is "twenty-two million, seven hundred twenty-three thousand, nine hundred sixty-nine".