12777700 has 36 divisors (see below), whose sum is σ = 29863540. Its totient is φ = 4717440.

The previous prime is 12777679. The next prime is 12777703. The reversal of 12777700 is 777721.

12777700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 118336 + 12659364 = 344^2 + 3558^2 .

It is not an unprimeable number, because it can be changed into a prime (12777703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3615 + ... + 6214.

Almost surely, 2^12777700 is an apocalyptic number.

12777700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12777700 is an abundant number, since it is smaller than the sum of its proper divisors (17085840).

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

12777700 is a wasteful number, since it uses less digits than its factorization.

12777700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9856 (or 9849 counting only the distinct ones).

The product of its (nonzero) digits is 4802, while the sum is 31.

The square root of 12777700 is about 3574.5908856819. The cubic root of 12777700 is about 233.7854951007.

The spelling of 12777700 in words is "twelve million, seven hundred seventy-seven thousand, seven hundred".