12835657 has 4 divisors (see below), whose sum is σ = 12893440. Its totient is φ = 12777876.

The previous prime is 12835651. The next prime is 12835687. The reversal of 12835657 is 75653821.

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: 75653821 = 1033 ⋅73237.

It is a cyclic number.

It is not a de Polignac number, because 12835657 - 2²³ = 4447049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12835651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28557 + ... + 29002.

It is an arithmetic number, because the mean of its divisors is an integer number (3223360).

Almost surely, 2^12835657 is an apocalyptic number.

It is an amenable number.

12835657 is a deficient number, since it is larger than the sum of its proper divisors (57783).

12835657 is an equidigital number, since it uses as much as digits as its factorization.

12835657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57782.

The product of its digits is 50400, while the sum is 37.

The square root of 12835657 is about 3582.6885156262. The cubic root of 12835657 is about 234.1384295487.

The spelling of 12835657 in words is "twelve million, eight hundred thirty-five thousand, six hundred fifty-seven".