12730577 has 4 divisors (see below), whose sum is σ = 12806976. Its totient is φ = 12654180.

The previous prime is 12730573. The next prime is 12730579. The reversal of 12730577 is 77503721.

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: 77503721 = 23 ⋅3369727.

It is a cyclic number.

It is not a de Polignac number, because 12730577 - 2² = 12730573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12730573) 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, 37949 + ... + 38282.

It is an arithmetic number, because the mean of its divisors is an integer number (3201744).

Almost surely, 2^12730577 is an apocalyptic number.

It is an amenable number.

12730577 is a deficient number, since it is larger than the sum of its proper divisors (76399).

12730577 is an equidigital number, since it uses as much as digits as its factorization.

12730577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76398.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 12730577 is about 3567.9934136711. The cubic root of 12730577 is about 233.4977478396.

The spelling of 12730577 in words is "twelve million, seven hundred thirty thousand, five hundred seventy-seven".