13949943 has 16 divisors (see below), whose sum is σ = 21355776. Its totient is φ = 7934400.

The previous prime is 13949941. The next prime is 13949951. The reversal of 13949943 is 34994931.

It is not a de Polignac number, because 13949943 - 2¹ = 13949941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13949895 and 13949904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13949941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3468 + ... + 6318.

It is an arithmetic number, because the mean of its divisors is an integer number (1334736).

Almost surely, 2^13949943 is an apocalyptic number.

13949943 is a deficient number, since it is larger than the sum of its proper divisors (7405833).

13949943 is a wasteful number, since it uses less digits than its factorization.

13949943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094.

The product of its digits is 104976, while the sum is 42.

The square root of 13949943 is about 3734.9622488052. The cubic root of 13949943 is about 240.7266345943.

The spelling of 13949943 in words is "thirteen million, nine hundred forty-nine thousand, nine hundred forty-three".