12986532 has 36 divisors (see below), whose sum is σ = 35353500. Its totient is φ = 3995712.

The previous prime is 12986527. The next prime is 12986563. The reversal of 12986532 is 23568921.

It can be written as a sum of positive squares in 2 ways, for example, as 2643876 + 10342656 = 1626^2 + 3216^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13407 + ... + 14342.

Almost surely, 2^12986532 is an apocalyptic number.

12986532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12986532 is an abundant number, since it is smaller than the sum of its proper divisors (22366968).

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

12986532 is a wasteful number, since it uses less digits than its factorization.

12986532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27772 (or 27767 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 12986532 is about 3603.6831159246. The cubic root of 12986532 is about 235.0522412905.

The spelling of 12986532 in words is "twelve million, nine hundred eighty-six thousand, five hundred thirty-two".