22989847 has 2 divisors, whose sum is σ = 22989848. Its totient is φ = 22989846.

The previous prime is 22989781. The next prime is 22989859. The reversal of 22989847 is 74898922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22989847 - 2¹¹ = 22987799 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22989847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22989947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11494923 + 11494924.

It is an arithmetic number, because the mean of its divisors is an integer number (11494924).

Almost surely, 2^22989847 is an apocalyptic number.

22989847 is a deficient number, since it is larger than the sum of its proper divisors (1).

22989847 is an equidigital number, since it uses as much as digits as its factorization.

22989847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 22989847 is about 4794.7728830467. The cubic root of 22989847 is about 284.3448457661.

The spelling of 22989847 in words is "twenty-two million, nine hundred eighty-nine thousand, eight hundred forty-seven".