13973737 has 8 divisors (see below), whose sum is σ = 14702400. Its totient is φ = 13261584.

The previous prime is 13973731. The next prime is 13973749. The reversal of 13973737 is 73737931.

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

It is a de Polignac number, because none of the positive numbers 2^k-13973737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13973737.

It is not an unprimeable number, because it can be changed into a prime (13973731) 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, 2373 + ... + 5794.

It is an arithmetic number, because the mean of its divisors is an integer number (1837800).

Almost surely, 2^13973737 is an apocalyptic number.

It is an amenable number.

13973737 is a deficient number, since it is larger than the sum of its proper divisors (728663).

13973737 is an equidigital number, since it uses as much as digits as its factorization.

13973737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255.

The product of its digits is 83349, while the sum is 40.

The square root of 13973737 is about 3738.1461983181. The cubic root of 13973737 is about 240.8634235886.

The spelling of 13973737 in words is "thirteen million, nine hundred seventy-three thousand, seven hundred thirty-seven".