13290887 has 2 divisors, whose sum is σ = 13290888. Its totient is φ = 13290886.

The previous prime is 13290853. The next prime is 13290911. The reversal of 13290887 is 78809231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13290887 - 2¹⁶ = 13225351 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13290887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13293887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645443 + 6645444.

It is an arithmetic number, because the mean of its divisors is an integer number (6645444).

Almost surely, 2^13290887 is an apocalyptic number.

13290887 is a deficient number, since it is larger than the sum of its proper divisors (1).

13290887 is an equidigital number, since it uses as much as digits as its factorization.

13290887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 13290887 is about 3645.6668800097. Note that the first 3 decimals coincide. The cubic root of 13290887 is about 236.8743243437.

It can be divided in two parts, 132 and 90887, that added together give a palindrome (91019).

The spelling of 13290887 in words is "thirteen million, two hundred ninety thousand, eight hundred eighty-seven".