12980777 has 8 divisors (see below), whose sum is σ = 13508040. Its totient is φ = 12458880.

The previous prime is 12980753. The next prime is 12980783. The reversal of 12980777 is 77708921.

It can be written as a sum of positive squares in 4 ways, for example, as 477481 + 12503296 = 691^2 + 3536^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12980777 - 2⁶ = 12980713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12980677) 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, 4013 + ... + 6485.

It is an arithmetic number, because the mean of its divisors is an integer number (1688505).

Almost surely, 2^12980777 is an apocalyptic number.

It is an amenable number.

12980777 is a deficient number, since it is larger than the sum of its proper divisors (527263).

12980777 is a wasteful number, since it uses less digits than its factorization.

12980777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683.

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 12980777 is about 3602.8845388105. The cubic root of 12980777 is about 235.0175149161.

The spelling of 12980777 in words is "twelve million, nine hundred eighty thousand, seven hundred seventy-seven".