13486997 has 2 divisors, whose sum is σ = 13486998. Its totient is φ = 13486996.

The previous prime is 13486951. The next prime is 13486999. The reversal of 13486997 is 79968431.

13486997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 4778596 = 2951^2 + 2186^2 .

It is an emirp because it is prime and its reverse (79968431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13486997 - 2⁸ = 13486741 is a prime.

Together with 13486999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13486999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6743498 + 6743499.

It is an arithmetic number, because the mean of its divisors is an integer number (6743499).

Almost surely, 2^13486997 is an apocalyptic number.

It is an amenable number.

13486997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13486997 is an equidigital number, since it uses as much as digits as its factorization.

13486997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 13486997 is about 3672.4647037106. The cubic root of 13486997 is about 238.0336851787.

The spelling of 13486997 in words is "thirteen million, four hundred eighty-six thousand, nine hundred ninety-seven".