13916931 has 24 divisors (see below), whose sum is σ = 22859280. Its totient is φ = 7483392.

The previous prime is 13916893. The next prime is 13916933. The reversal of 13916931 is 13961931.

It is a happy number.

It is not a de Polignac number, because 13916931 - 2⁶ = 13916867 is a prime.

It is a super-2 number, since 2×13916931² = 387361936917522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13916892 and 13916901.

It is not an unprimeable number, because it can be changed into a prime (13916933) 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 in 23 ways as a sum of consecutive naturals, for example, 286 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (952470).

Almost surely, 2^13916931 is an apocalyptic number.

13916931 is a deficient number, since it is larger than the sum of its proper divisors (8942349).

13916931 is a wasteful number, since it uses less digits than its factorization.

13916931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603 (or 5596 counting only the distinct ones).

The product of its digits is 4374, while the sum is 33.

The square root of 13916931 is about 3730.5403093922. The cubic root of 13916931 is about 240.5365945211.

The spelling of 13916931 in words is "thirteen million, nine hundred sixteen thousand, nine hundred thirty-one".