12986776 has 32 divisors (see below), whose sum is σ = 28129680. Its totient is φ = 5555200.

The previous prime is 12986723. The next prime is 12986783. The reversal of 12986776 is 67768921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2845 + ... + 5836.

Almost surely, 2^12986776 is an apocalyptic number.

It is an amenable number.

12986776 is an abundant number, since it is smaller than the sum of its proper divisors (15142904).

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

12986776 is a wasteful number, since it uses less digits than its factorization.

12986776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715 (or 8711 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 12986776 is about 3603.7169700186. The cubic root of 12986776 is about 235.0537133896.

The spelling of 12986776 in words is "twelve million, nine hundred eighty-six thousand, seven hundred seventy-six".