13997849 has 2 divisors, whose sum is σ = 13997850. Its totient is φ = 13997848.

The previous prime is 13997839. The next prime is 13997861. The reversal of 13997849 is 94879931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12652249 + 1345600 = 3557^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 13997849 - 2¹² = 13993753 is a prime.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13997797 and 13997806.

It is not a weakly prime, because it can be changed into another prime (13997839) 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, 6998924 + 6998925.

It is an arithmetic number, because the mean of its divisors is an integer number (6998925).

Almost surely, 2^13997849 is an apocalyptic number.

It is an amenable number.

13997849 is a deficient number, since it is larger than the sum of its proper divisors (1).

13997849 is an equidigital number, since it uses as much as digits as its factorization.

13997849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 50.

The square root of 13997849 is about 3741.3699362667. The cubic root of 13997849 is about 241.0018824139.

The spelling of 13997849 in words is "thirteen million, nine hundred ninety-seven thousand, eight hundred forty-nine".