13403849 has 2 divisors, whose sum is σ = 13403850. Its totient is φ = 13403848.

The previous prime is 13403827. The next prime is 13403869. The reversal of 13403849 is 94830431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10843849 + 2560000 = 3293^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 13403849 - 2¹⁶ = 13338313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13403869) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6701924 + 6701925.

It is an arithmetic number, because the mean of its divisors is an integer number (6701925).

Almost surely, 2^13403849 is an apocalyptic number.

It is an amenable number.

13403849 is a deficient number, since it is larger than the sum of its proper divisors (1).

13403849 is an equidigital number, since it uses as much as digits as its factorization.

13403849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13403849 is about 3661.1267391337. The cubic root of 13403849 is about 237.5435133569.

The spelling of 13403849 in words is "thirteen million, four hundred three thousand, eight hundred forty-nine".