23712397 has 2 divisors, whose sum is σ = 23712398. Its totient is φ = 23712396.

The previous prime is 23712383. The next prime is 23712421. The reversal of 23712397 is 79321732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17255716 + 6456681 = 4154^2 + 2541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23712397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23712317) 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, 11856198 + 11856199.

It is an arithmetic number, because the mean of its divisors is an integer number (11856199).

Almost surely, 2^23712397 is an apocalyptic number.

It is an amenable number.

23712397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23712397 is an equidigital number, since it uses as much as digits as its factorization.

23712397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 34.

The square root of 23712397 is about 4869.5376577248. The cubic root of 23712397 is about 287.2930715146.

The spelling of 23712397 in words is "twenty-three million, seven hundred twelve thousand, three hundred ninety-seven".