12087697 has 4 divisors (see below), whose sum is σ = 12798756. Its totient is φ = 11376640.

The previous prime is 12087689. The next prime is 12087703. The reversal of 12087697 is 79678021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4910656 + 7177041 = 2216^2 + 2679^2 .

It is a cyclic number.

It is not a de Polignac number, because 12087697 - 2³ = 12087689 is a prime.

It is a super-2 number, since 2×12087697² = 292224837527618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12087617) 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 3 ways as a sum of consecutive naturals, for example, 355504 + ... + 355537.

It is an arithmetic number, because the mean of its divisors is an integer number (3199689).

Almost surely, 2^12087697 is an apocalyptic number.

12087697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12087697 is a deficient number, since it is larger than the sum of its proper divisors (711059).

12087697 is an equidigital number, since it uses as much as digits as its factorization.

12087697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711058.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 12087697 is about 3476.7365445199. The cubic root of 12087697 is about 229.4992065386.

The spelling of 12087697 in words is "twelve million, eighty-seven thousand, six hundred ninety-seven".