22716947 has 32 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 18188800.

The previous prime is 22716937. The next prime is 22716971. The reversal of 22716947 is 74961722.

It is not a de Polignac number, because 22716947 - 2⁸ = 22716691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22716947.

It is not an unprimeable number, because it can be changed into a prime (22716907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319922 + ... + 319992.

It is an arithmetic number, because the mean of its divisors is an integer number (874800).

Almost surely, 2^22716947 is an apocalyptic number.

22716947 is a deficient number, since it is larger than the sum of its proper divisors (5276653).

22716947 is a wasteful number, since it uses less digits than its factorization.

22716947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187.

The product of its digits is 42336, while the sum is 38.

The square root of 22716947 is about 4766.2298517801. The cubic root of 22716947 is about 283.2152632232.

The spelling of 22716947 in words is "twenty-two million, seven hundred sixteen thousand, nine hundred forty-seven".