22939843 has 4 divisors (see below), whose sum is σ = 23315968. Its totient is φ = 22563720.

The previous prime is 22939801. The next prime is 22939853. The reversal of 22939843 is 34893922.

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 22939843 - 2²¹ = 20842691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22939796 and 22939805.

It is not an unprimeable number, because it can be changed into a prime (22939853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187971 + ... + 188092.

It is an arithmetic number, because the mean of its divisors is an integer number (5828992).

Almost surely, 2^22939843 is an apocalyptic number.

22939843 is a deficient number, since it is larger than the sum of its proper divisors (376125).

22939843 is an equidigital number, since it uses as much as digits as its factorization.

22939843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376124.

The product of its digits is 93312, while the sum is 40.

The square root of 22939843 is about 4789.5556161297. Note that the first 3 decimals coincide. The cubic root of 22939843 is about 284.1385416428.

It can be divided in two parts, 229398 and 43, that added together give a square (229441 = 479²).

The spelling of 22939843 in words is "twenty-two million, nine hundred thirty-nine thousand, eight hundred forty-three".