22172839 has 8 divisors (see below), whose sum is σ = 24040800. Its totient is φ = 20328096.

The previous prime is 22172827. The next prime is 22172893. The reversal of 22172839 is 93827122.

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 22172839 - 2¹³ = 22164647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22172819) 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, 3787 + ... + 7660.

It is an arithmetic number, because the mean of its divisors is an integer number (3005100).

Almost surely, 2^22172839 is an apocalyptic number.

22172839 is a deficient number, since it is larger than the sum of its proper divisors (1867961).

22172839 is a wasteful number, since it uses less digits than its factorization.

22172839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11609.

The product of its digits is 12096, while the sum is 34.

The square root of 22172839 is about 4708.8044130119. The cubic root of 22172839 is about 280.9358101967.

The spelling of 22172839 in words is "twenty-two million, one hundred seventy-two thousand, eight hundred thirty-nine".