13287078 has 40 divisors (see below), whose sum is σ = 34029072. Its totient is φ = 3795984.

The previous prime is 13287049. The next prime is 13287083. The reversal of 13287078 is 87078231.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4725 + ... + 6992.

Almost surely, 2^13287078 is an apocalyptic number.

13287078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13287078 is an abundant number, since it is smaller than the sum of its proper divisors (20741994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13287078 is a wasteful number, since it uses less digits than its factorization.

13287078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738 (or 11729 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 13287078 is about 3645.1444415825. The cubic root of 13287078 is about 236.8516937872.

The spelling of 13287078 in words is "thirteen million, two hundred eighty-seven thousand, seventy-eight".