23719 has 2 divisors, whose sum is σ = 23720. Its totient is φ = 23718.
The previous prime is 23689. The next prime is 23741. The reversal of 23719 is 91732.
It is an a-pointer prime, because the next prime (23741) can be obtained adding 23719 to its sum of digits (22).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 23719 - 25 = 23687 is a prime.
It is a super-2 number, since 2×237192 = 1125181922, which contains 22 as substring.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 23719.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23789) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11859 + 11860.
It is an arithmetic number, because the mean of its divisors is an integer number (11860).
223719 is an apocalyptic number.
23719 is a deficient number, since it is larger than the sum of its proper divisors (1).
23719 is an equidigital number, since it uses as much as digits as its factorization.
23719 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 378, while the sum is 22.
The square root of 23719 is about 154.0097399517. The cubic root of 23719 is about 28.7319735768.
It can be divided in two parts, 237 and 19, that added together give a 8-th power (256 = 28).
The spelling of 23719 in words is "twenty-three thousand, seven hundred nineteen".
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