13783849 has 2 divisors, whose sum is σ = 13783850. Its totient is φ = 13783848.

The previous prime is 13783837. The next prime is 13783859. The reversal of 13783849 is 94838731.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9610000 + 4173849 = 3100^2 + 2043^2 .

It is a cyclic number.

It is not a de Polignac number, because 13783849 - 2⁵ = 13783817 is a prime.

It is not a weakly prime, because it can be changed into another prime (13783859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6891924 + 6891925.

It is an arithmetic number, because the mean of its divisors is an integer number (6891925).

Almost surely, 2^13783849 is an apocalyptic number.

It is an amenable number.

13783849 is a deficient number, since it is larger than the sum of its proper divisors (1).

13783849 is an equidigital number, since it uses as much as digits as its factorization.

13783849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 13783849 is about 3712.6606362554. The cubic root of 13783849 is about 239.7674193581.

The spelling of 13783849 in words is "thirteen million, seven hundred eighty-three thousand, eight hundred forty-nine".