13983907 has 4 divisors (see below), whose sum is σ = 15981616. Its totient is φ = 11986200.

The previous prime is 13983899. The next prime is 13983913. The reversal of 13983907 is 70938931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70938931 = 7 ⋅10134133.

It is a cyclic number.

It is not a de Polignac number, because 13983907 - 2³ = 13983899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13983907.

It is not an unprimeable number, because it can be changed into a prime (13983917) 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 3 ways as a sum of consecutive naturals, for example, 998844 + ... + 998857.

It is an arithmetic number, because the mean of its divisors is an integer number (3995404).

Almost surely, 2^13983907 is an apocalyptic number.

13983907 is a deficient number, since it is larger than the sum of its proper divisors (1997709).

13983907 is an equidigital number, since it uses as much as digits as its factorization.

13983907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997708.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 13983907 is about 3739.5062508304. The cubic root of 13983907 is about 240.9218423922.

The spelling of 13983907 in words is "thirteen million, nine hundred eighty-three thousand, nine hundred seven".