12570657 has 8 divisors (see below), whose sum is σ = 18284640. Its totient is φ = 7618560.

The previous prime is 12570637. The next prime is 12570689. The reversal of 12570657 is 75607521.

12570657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12570657 - 2⁷ = 12570529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 380929 = 12570657 / (1 + 2 + 5 + 7 + 0 + 6 + 5 + 7).

It is not an unprimeable number, because it can be changed into a prime (12570637) 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, 190432 + ... + 190497.

It is an arithmetic number, because the mean of its divisors is an integer number (2285580).

Almost surely, 2^12570657 is an apocalyptic number.

It is an amenable number.

12570657 is a deficient number, since it is larger than the sum of its proper divisors (5713983).

12570657 is a wasteful number, since it uses less digits than its factorization.

12570657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380943.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 12570657 is about 3545.5122337964. The cubic root of 12570657 is about 232.5159013289.

The spelling of 12570657 in words is "twelve million, five hundred seventy thousand, six hundred fifty-seven".