13973207 has 4 divisors (see below), whose sum is σ = 13986480. Its totient is φ = 13959936.

The previous prime is 13973203. The next prime is 13973221. The reversal of 13973207 is 70237931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70237931 = 17 ⋅4131643.

It is a cyclic number.

It is not a de Polignac number, because 13973207 - 2² = 13973203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13973203) 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, 4907 + ... + 7212.

It is an arithmetic number, because the mean of its divisors is an integer number (3496620).

Almost surely, 2^13973207 is an apocalyptic number.

13973207 is a deficient number, since it is larger than the sum of its proper divisors (13273).

13973207 is a wasteful number, since it uses less digits than its factorization.

13973207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13272.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 13973207 is about 3738.0753068926. The cubic root of 13973207 is about 240.8603783705.

The spelling of 13973207 in words is "thirteen million, nine hundred seventy-three thousand, two hundred seven".