12857797 has 8 divisors (see below), whose sum is σ = 13651200. Its totient is φ = 12068544.

The previous prime is 12857791. The next prime is 12857827. The reversal of 12857797 is 79775821.

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 12857797 - 2¹⁹ = 12333509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857791) 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, 7354 + ... + 8932.

It is an arithmetic number, because the mean of its divisors is an integer number (1706400).

Almost surely, 2^12857797 is an apocalyptic number.

12857797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12857797 is a deficient number, since it is larger than the sum of its proper divisors (793403).

12857797 is a wasteful number, since it uses less digits than its factorization.

12857797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075.

The product of its digits is 246960, while the sum is 46.

The square root of 12857797 is about 3585.7770427064. Note that the first 3 decimals coincide. The cubic root of 12857797 is about 234.2729726470.

The spelling of 12857797 in words is "twelve million, eight hundred fifty-seven thousand, seven hundred ninety-seven".