22913447 has 2 divisors, whose sum is σ = 22913448. Its totient is φ = 22913446.

The previous prime is 22913441. The next prime is 22913461. The reversal of 22913447 is 74431922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22913447 - 2⁴ = 22913431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22913441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11456723 + 11456724.

It is an arithmetic number, because the mean of its divisors is an integer number (11456724).

Almost surely, 2^22913447 is an apocalyptic number.

22913447 is a deficient number, since it is larger than the sum of its proper divisors (1).

22913447 is an equidigital number, since it uses as much as digits as its factorization.

22913447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 22913447 is about 4786.7992437536. The cubic root of 22913447 is about 284.0295173645.

The spelling of 22913447 in words is "twenty-two million, nine hundred thirteen thousand, four hundred forty-seven".