13724069 has 2 divisors, whose sum is σ = 13724070. Its totient is φ = 13724068.

The previous prime is 13724063. The next prime is 13724071. The reversal of 13724069 is 96042731.

13724069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8773444 + 4950625 = 2962^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 13724069 - 2²⁰ = 12675493 is a prime.

It is a super-2 number, since 2×13724069² = 376700139833522, which contains 22 as substring.

Together with 13724071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13724063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6862034 + 6862035.

It is an arithmetic number, because the mean of its divisors is an integer number (6862035).

Almost surely, 2^13724069 is an apocalyptic number.

It is an amenable number.

13724069 is a deficient number, since it is larger than the sum of its proper divisors (1).

13724069 is an equidigital number, since it uses as much as digits as its factorization.

13724069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 13724069 is about 3704.6010581438. The cubic root of 13724069 is about 239.4202964953.

The spelling of 13724069 in words is "thirteen million, seven hundred twenty-four thousand, sixty-nine".