13824739 has 2 divisors, whose sum is σ = 13824740. Its totient is φ = 13824738.

The previous prime is 13824719. The next prime is 13824743. The reversal of 13824739 is 93742831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13824739 - 2⁹ = 13824227 is a prime.

It is a super-2 number, since 2×13824739² = 382246816836242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13824698 and 13824707.

It is not a weakly prime, because it can be changed into another prime (13824709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6912369 + 6912370.

It is equal to the Eulerian number A(15, 2).

It is an arithmetic number, because the mean of its divisors is an integer number (6912370).

Almost surely, 2^13824739 is an apocalyptic number.

13824739 is a deficient number, since it is larger than the sum of its proper divisors (1).

13824739 is an equidigital number, since it uses as much as digits as its factorization.

13824739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 13824739 is about 3718.1633907078. The cubic root of 13824739 is about 240.0042765442.

The spelling of 13824739 in words is "thirteen million, eight hundred twenty-four thousand, seven hundred thirty-nine".