22347643 has 4 divisors (see below), whose sum is σ = 22453768. Its totient is φ = 22241520.

The previous prime is 22347641. The next prime is 22347653. The reversal of 22347643 is 34674322.

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 22347643 - 2¹ = 22347641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22347641) 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, 52746 + ... + 53167.

It is an arithmetic number, because the mean of its divisors is an integer number (5613442).

Almost surely, 2^22347643 is an apocalyptic number.

22347643 is a deficient number, since it is larger than the sum of its proper divisors (106125).

22347643 is a wasteful number, since it uses less digits than its factorization.

22347643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106124.

The product of its digits is 24192, while the sum is 31.

The square root of 22347643 is about 4727.3293729124. The cubic root of 22347643 is about 281.6721497168.

The spelling of 22347643 in words is "twenty-two million, three hundred forty-seven thousand, six hundred forty-three".