12649756 has 24 divisors (see below), whose sum is σ = 25389056. Its totient is φ = 5402160.

The previous prime is 12649733. The next prime is 12649757. The reversal of 12649756 is 65794621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12649757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9661 + ... + 10891.

Almost surely, 2^12649756 is an apocalyptic number.

It is an amenable number.

12649756 is an abundant number, since it is smaller than the sum of its proper divisors (12739300).

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

12649756 is a wasteful number, since it uses less digits than its factorization.

12649756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609 (or 1607 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 12649756 is about 3556.6495469754. The cubic root of 12649756 is about 233.0025726229.

The spelling of 12649756 in words is "twelve million, six hundred forty-nine thousand, seven hundred fifty-six".