12685797 has 6 divisors (see below), whose sum is σ = 18323942. Its totient is φ = 8457192.

The previous prime is 12685763. The next prime is 12685837. The reversal of 12685797 is 79758621.

12685797 is a `hidden beast` number, since 12 + 68 + 579 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6380676 + 6305121 = 2526^2 + 2511^2 .

It is not a de Polignac number, because 12685797 - 2⁶ = 12685733 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 (12685097) 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 5 ways as a sum of consecutive naturals, for example, 704758 + ... + 704775.

Almost surely, 2^12685797 is an apocalyptic number.

It is an amenable number.

12685797 is a deficient number, since it is larger than the sum of its proper divisors (5638145).

12685797 is a wasteful number, since it uses less digits than its factorization.

12685797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409539 (or 1409536 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12685797 is about 3561.7126498358. The cubic root of 12685797 is about 233.2236489016.

The spelling of 12685797 in words is "twelve million, six hundred eighty-five thousand, seven hundred ninety-seven".