12528977 has 8 divisors (see below), whose sum is σ = 12921216. Its totient is φ = 12139632.

The previous prime is 12528959. The next prime is 12528979. The reversal of 12528977 is 77982521.

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 12528977 - 2⁶ = 12528913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12528979) 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, 10808 + ... + 11910.

It is an arithmetic number, because the mean of its divisors is an integer number (1615152).

Almost surely, 2^12528977 is an apocalyptic number.

It is an amenable number.

12528977 is a deficient number, since it is larger than the sum of its proper divisors (392239).

12528977 is a wasteful number, since it uses less digits than its factorization.

12528977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447.

The product of its digits is 70560, while the sum is 41.

The square root of 12528977 is about 3539.6295003856. The cubic root of 12528977 is about 232.2586357113.

The spelling of 12528977 in words is "twelve million, five hundred twenty-eight thousand, nine hundred seventy-seven".