23867197 has 2 divisors, whose sum is σ = 23867198. Its totient is φ = 23867196.

The previous prime is 23867191. The next prime is 23867227. The reversal of 23867197 is 79176832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19175641 + 4691556 = 4379^2 + 2166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23867197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23867191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11933598 + 11933599.

It is an arithmetic number, because the mean of its divisors is an integer number (11933599).

Almost surely, 2^23867197 is an apocalyptic number.

It is an amenable number.

23867197 is a deficient number, since it is larger than the sum of its proper divisors (1).

23867197 is an equidigital number, since it uses as much as digits as its factorization.

23867197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 23867197 is about 4885.4065337493. The cubic root of 23867197 is about 287.9168878295.

The spelling of 23867197 in words is "twenty-three million, eight hundred sixty-seven thousand, one hundred ninety-seven".