13287995 has 32 divisors (see below), whose sum is σ = 19378176. Its totient is φ = 8553600.

The previous prime is 13287991. The next prime is 13288007. The reversal of 13287995 is 59978231.

13287995 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13287995 - 2² = 13287991 is a prime.

It is a super-2 number, since 2×13287995² = 353141622240050, which contains 22 as substring.

It is a Duffinian number.

13287995 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13287991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39980 + ... + 40310.

It is an arithmetic number, because the mean of its divisors is an integer number (605568).

Almost surely, 2^13287995 is an apocalyptic number.

13287995 is a deficient number, since it is larger than the sum of its proper divisors (6090181).

13287995 is a wasteful number, since it uses less digits than its factorization.

13287995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 136080, while the sum is 44.

The square root of 13287995 is about 3645.2702231796. The cubic root of 13287995 is about 236.8571423894.

The spelling of 13287995 in words is "thirteen million, two hundred eighty-seven thousand, nine hundred ninety-five".