22734947 has 2 divisors, whose sum is σ = 22734948. Its totient is φ = 22734946.

The previous prime is 22734941. The next prime is 22734949. The reversal of 22734947 is 74943722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22734947 - 2⁴ = 22734931 is a prime.

Together with 22734949, it forms a pair of twin primes.

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 22734947.

It is not a weakly prime, because it can be changed into another prime (22734941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11367473 + 11367474.

It is an arithmetic number, because the mean of its divisors is an integer number (11367474).

Almost surely, 2^22734947 is an apocalyptic number.

22734947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22734947 is an equidigital number, since it uses as much as digits as its factorization.

22734947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 22734947 is about 4768.1177628075. The cubic root of 22734947 is about 283.2900462898.

The spelling of 22734947 in words is "twenty-two million, seven hundred thirty-four thousand, nine hundred forty-seven".