13981673 has 4 divisors (see below), whose sum is σ = 13994640. Its totient is φ = 13968708.

The previous prime is 13981661. The next prime is 13981679. The reversal of 13981673 is 37618931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13981673 - 2⁸ = 13981417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13981679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703 + ... + 7076.

It is an arithmetic number, because the mean of its divisors is an integer number (3498660).

Almost surely, 2^13981673 is an apocalyptic number.

It is an amenable number.

13981673 is a deficient number, since it is larger than the sum of its proper divisors (12967).

13981673 is a wasteful number, since it uses less digits than its factorization.

13981673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12966.

The product of its digits is 27216, while the sum is 38.

The square root of 13981673 is about 3739.2075363638. The cubic root of 13981673 is about 240.9090122140.

The spelling of 13981673 in words is "thirteen million, nine hundred eighty-one thousand, six hundred seventy-three".