13971693 has 8 divisors (see below), whose sum is σ = 19083456. Its totient is φ = 9087200.

The previous prime is 13971667. The next prime is 13971697. The reversal of 13971693 is 39617931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13971693 - 2¹⁴ = 13955309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13971697) 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 in 7 ways as a sum of consecutive naturals, for example, 56673 + ... + 56918.

It is an arithmetic number, because the mean of its divisors is an integer number (2385432).

Almost surely, 2^13971693 is an apocalyptic number.

It is an amenable number.

13971693 is a deficient number, since it is larger than the sum of its proper divisors (5111763).

13971693 is a wasteful number, since it uses less digits than its factorization.

13971693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113635.

The product of its digits is 30618, while the sum is 39.

The square root of 13971693 is about 3737.8727907728. The cubic root of 13971693 is about 240.8516789650.

The spelling of 13971693 in words is "thirteen million, nine hundred seventy-one thousand, six hundred ninety-three".