13986312 has 16 divisors (see below), whose sum is σ = 34965840. Its totient is φ = 4662096.

The previous prime is 13986311. The next prime is 13986331. The reversal of 13986312 is 21368931.

It is a super-2 number, since 2×13986312² = 391233846722688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13986311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291358 + ... + 291405.

It is an arithmetic number, because the mean of its divisors is an integer number (2185365).

Almost surely, 2^13986312 is an apocalyptic number.

13986312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13986312 is an abundant number, since it is smaller than the sum of its proper divisors (20979528).

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

13986312 is a wasteful number, since it uses less digits than its factorization.

13986312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582772 (or 582768 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 13986312 is about 3739.8278035225. The cubic root of 13986312 is about 240.9356531205.

The spelling of 13986312 in words is "thirteen million, nine hundred eighty-six thousand, three hundred twelve".