22957447 has 2 divisors, whose sum is σ = 22957448. Its totient is φ = 22957446.

The previous prime is 22957421. The next prime is 22957469. The reversal of 22957447 is 74475922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22957447 - 2¹¹ = 22955399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22957477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11478723 + 11478724.

It is an arithmetic number, because the mean of its divisors is an integer number (11478724).

Almost surely, 2^22957447 is an apocalyptic number.

22957447 is a deficient number, since it is larger than the sum of its proper divisors (1).

22957447 is an equidigital number, since it uses as much as digits as its factorization.

22957447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 22957447 is about 4791.3930124756. The cubic root of 22957447 is about 284.2112055509.

The spelling of 22957447 in words is "twenty-two million, nine hundred fifty-seven thousand, four hundred forty-seven".