22209347 has 8 divisors (see below), whose sum is σ = 23559360. Its totient is φ = 20877480.

The previous prime is 22209277. The next prime is 22209353. The reversal of 22209347 is 74390222.

It is a happy number.

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 22209347 - 2¹⁰ = 22208323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22209367) 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, 1973 + ... + 6950.

It is an arithmetic number, because the mean of its divisors is an integer number (2944920).

Almost surely, 2^22209347 is an apocalyptic number.

22209347 is a deficient number, since it is larger than the sum of its proper divisors (1350013).

22209347 is a wasteful number, since it uses less digits than its factorization.

22209347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9073.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 22209347 is about 4712.6793865062. The cubic root of 22209347 is about 281.0899143626.

Adding to 22209347 its reverse (74390222), we get a palindrome (96599569).

The spelling of 22209347 in words is "twenty-two million, two hundred nine thousand, three hundred forty-seven".