23216047 has 2 divisors, whose sum is σ = 23216048. Its totient is φ = 23216046.

The previous prime is 23216041. The next prime is 23216069. The reversal of 23216047 is 74061232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23216047 - 2¹¹ = 23213999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23216041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608023 + 11608024.

It is an arithmetic number, because the mean of its divisors is an integer number (11608024).

Almost surely, 2^23216047 is an apocalyptic number.

23216047 is a deficient number, since it is larger than the sum of its proper divisors (1).

23216047 is an equidigital number, since it uses as much as digits as its factorization.

23216047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 23216047 is about 4818.3033320869. The cubic root of 23216047 is about 285.2743720731.

Adding to 23216047 its reverse (74061232), we get a palindrome (97277279).

The spelling of 23216047 in words is "twenty-three million, two hundred sixteen thousand, forty-seven".