23722297 has 2 divisors, whose sum is σ = 23722298. Its totient is φ = 23722296.

The previous prime is 23722271. The next prime is 23722331. The reversal of 23722297 is 79222732.

It is an a-pointer prime, because the next prime (23722331) can be obtained adding 23722297 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23532201 + 190096 = 4851^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 23722297 - 2¹⁵ = 23689529 is a prime.

It is not a weakly prime, because it can be changed into another prime (23722247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11861148 + 11861149.

It is an arithmetic number, because the mean of its divisors is an integer number (11861149).

Almost surely, 2^23722297 is an apocalyptic number.

It is an amenable number.

23722297 is a deficient number, since it is larger than the sum of its proper divisors (1).

23722297 is an equidigital number, since it uses as much as digits as its factorization.

23722297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 23722297 is about 4870.5540752567. The cubic root of 23722297 is about 287.3330478707. Note that the first 3 decimals are identical.

The spelling of 23722297 in words is "twenty-three million, seven hundred twenty-two thousand, two hundred ninety-seven".