12704577 has 8 divisors (see below), whose sum is σ = 17259264. Its totient is φ = 8309808.

The previous prime is 12704567. The next prime is 12704591. The reversal of 12704577 is 77540721.

It is a happy number.

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

It is not a de Polignac number, because 12704577 - 2¹⁰ = 12703553 is a prime.

It is a super-2 number, since 2×12704577² = 322812553497858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12704507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39793 + ... + 40110.

It is an arithmetic number, because the mean of its divisors is an integer number (2157408).

Almost surely, 2^12704577 is an apocalyptic number.

It is an amenable number.

12704577 is a deficient number, since it is larger than the sum of its proper divisors (4554687).

12704577 is an equidigital number, since it uses as much as digits as its factorization.

12704577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79959.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 12704577 is about 3564.3480469786. The cubic root of 12704577 is about 233.3386799228.

The spelling of 12704577 in words is "twelve million, seven hundred four thousand, five hundred seventy-seven".