12968577 has 6 divisors (see below), whose sum is σ = 18732402. Its totient is φ = 8645712.

The previous prime is 12968567. The next prime is 12968581. The reversal of 12968577 is 77586921.

12968577 is a `hidden beast` number, since 12 + 9 + 68 + 577 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12278016 + 690561 = 3504^2 + 831^2 .

It is not a de Polignac number, because 12968577 - 2⁸ = 12968321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12968567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 720468 + ... + 720485.

It is an arithmetic number, because the mean of its divisors is an integer number (3122067).

Almost surely, 2^12968577 is an apocalyptic number.

It is an amenable number.

12968577 is a deficient number, since it is larger than the sum of its proper divisors (5763825).

12968577 is a wasteful number, since it uses less digits than its factorization.

12968577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440959 (or 1440956 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12968577 is about 3601.1910529712. The cubic root of 12968577 is about 234.9438646664.

The spelling of 12968577 in words is "twelve million, nine hundred sixty-eight thousand, five hundred seventy-seven".