13328587 has 2 divisors, whose sum is σ = 13328588. Its totient is φ = 13328586.

The previous prime is 13328573. The next prime is 13328591. The reversal of 13328587 is 78582331.

13328587 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 an emirp because it is prime and its reverse (78582331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13328587 is a prime.

It is not a weakly prime, because it can be changed into another prime (13328507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6664293 + 6664294.

It is an arithmetic number, because the mean of its divisors is an integer number (6664294).

Almost surely, 2^13328587 is an apocalyptic number.

13328587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13328587 is an equidigital number, since it uses as much as digits as its factorization.

13328587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 13328587 is about 3650.8337403941. The cubic root of 13328587 is about 237.0980799579.

The spelling of 13328587 in words is "thirteen million, three hundred twenty-eight thousand, five hundred eighty-seven".