13899547 has 2 divisors, whose sum is σ = 13899548. Its totient is φ = 13899546.

The previous prime is 13899539. The next prime is 13899551. The reversal of 13899547 is 74599831.

It is a happy number.

13899547 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 is a cyclic number.

It is not a de Polignac number, because 13899547 - 2³ = 13899539 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13899497 and 13899506.

It is not a weakly prime, because it can be changed into another prime (13899517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949773 + 6949774.

It is an arithmetic number, because the mean of its divisors is an integer number (6949774).

Almost surely, 2^13899547 is an apocalyptic number.

13899547 is a deficient number, since it is larger than the sum of its proper divisors (1).

13899547 is an equidigital number, since it uses as much as digits as its factorization.

13899547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 13899547 is about 3728.2096239348. The cubic root of 13899547 is about 240.4363992880.

The spelling of 13899547 in words is "thirteen million, eight hundred ninety-nine thousand, five hundred forty-seven".