22922447 has 4 divisors (see below), whose sum is σ = 23355000. Its totient is φ = 22489896.

The previous prime is 22922413. The next prime is 22922507. The reversal of 22922447 is 74422922.

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 22922447 - 2²⁴ = 6145231 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 (22922047) 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, 216197 + ... + 216302.

It is an arithmetic number, because the mean of its divisors is an integer number (5838750).

Almost surely, 2^22922447 is an apocalyptic number.

22922447 is a deficient number, since it is larger than the sum of its proper divisors (432553).

22922447 is an equidigital number, since it uses as much as digits as its factorization.

22922447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432552.

The product of its digits is 16128, while the sum is 32.

The square root of 22922447 is about 4787.7392368424. The cubic root of 22922447 is about 284.0666997672.

The spelling of 22922447 in words is "twenty-two million, nine hundred twenty-two thousand, four hundred forty-seven".