12900777 has 4 divisors (see below), whose sum is σ = 17201040. Its totient is φ = 8600516.

The previous prime is 12900757. The next prime is 12900793. The reversal of 12900777 is 77700921.

12900777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77700921 = 3 ⋅25900307.

It is a cyclic number.

It is not a de Polignac number, because 12900777 - 2⁸ = 12900521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12900757) 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, 2150127 + ... + 2150132.

It is an arithmetic number, because the mean of its divisors is an integer number (4300260).

Almost surely, 2^12900777 is an apocalyptic number.

It is an amenable number.

12900777 is a deficient number, since it is larger than the sum of its proper divisors (4300263).

12900777 is an equidigital number, since it uses as much as digits as its factorization.

12900777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300262.

The product of its (nonzero) digits is 6174, while the sum is 33.

The square root of 12900777 is about 3591.7651649294. The cubic root of 12900777 is about 234.5337185539.

The spelling of 12900777 in words is "twelve million, nine hundred thousand, seven hundred seventy-seven".