13831963 has 2 divisors, whose sum is σ = 13831964. Its totient is φ = 13831962.

The previous prime is 13831957. The next prime is 13832009. The reversal of 13831963 is 36913831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13831963 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (13831903) 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, 6915981 + 6915982.

It is an arithmetic number, because the mean of its divisors is an integer number (6915982).

Almost surely, 2^13831963 is an apocalyptic number.

13831963 is a deficient number, since it is larger than the sum of its proper divisors (1).

13831963 is an equidigital number, since it uses as much as digits as its factorization.

13831963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 13831963 is about 3719.1347111929. The cubic root of 13831963 is about 240.0460733306.

The spelling of 13831963 in words is "thirteen million, eight hundred thirty-one thousand, nine hundred sixty-three".