13436387 has 2 divisors, whose sum is σ = 13436388. Its totient is φ = 13436386.

The previous prime is 13436377. The next prime is 13436389. The reversal of 13436387 is 78363431.

It is a happy number.

13436387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13436387 - 2⁶ = 13436323 is a prime.

It is a super-2 number, since 2×13436387² = 361072991227538, which contains 22 as substring.

Together with 13436389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13436389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6718193 + 6718194.

It is an arithmetic number, because the mean of its divisors is an integer number (6718194).

Almost surely, 2^13436387 is an apocalyptic number.

13436387 is a deficient number, since it is larger than the sum of its proper divisors (1).

13436387 is an equidigital number, since it uses as much as digits as its factorization.

13436387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 13436387 is about 3665.5677595701. The cubic root of 13436387 is about 237.7355712507.

The spelling of 13436387 in words is "thirteen million, four hundred thirty-six thousand, three hundred eighty-seven".