13677973 has 2 divisors, whose sum is σ = 13677974. Its totient is φ = 13677972.

The previous prime is 13677971. The next prime is 13677991. The reversal of 13677973 is 37977631.

13677973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11847364 + 1830609 = 3442^2 + 1353^2 .

It is an emirp because it is prime and its reverse (37977631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13677973 - 2¹ = 13677971 is a prime.

Together with 13677971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13677971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6838986 + 6838987.

It is an arithmetic number, because the mean of its divisors is an integer number (6838987).

Almost surely, 2^13677973 is an apocalyptic number.

It is an amenable number.

13677973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13677973 is an equidigital number, since it uses as much as digits as its factorization.

13677973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 166698, while the sum is 43.

The square root of 13677973 is about 3698.3743726129. The cubic root of 13677973 is about 239.1519432042.

The spelling of 13677973 in words is "thirteen million, six hundred seventy-seven thousand, nine hundred seventy-three".