12397827 has 16 divisors (see below), whose sum is σ = 17937920. Its totient is φ = 7571232.

The previous prime is 12397817. The next prime is 12397829. The reversal of 12397827 is 72879321.

12397827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12397827 - 2⁸ = 12397571 is a prime.

It is a super-2 number, since 2×12397827² = 307412228643858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12397829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4278 + ... + 6564.

It is an arithmetic number, because the mean of its divisors is an integer number (1121120).

Almost surely, 2^12397827 is an apocalyptic number.

12397827 is a deficient number, since it is larger than the sum of its proper divisors (5540093).

12397827 is a wasteful number, since it uses less digits than its factorization.

12397827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its digits is 42336, while the sum is 39.

The square root of 12397827 is about 3521.0548135466. The cubic root of 12397827 is about 231.4453842272.

The spelling of 12397827 in words is "twelve million, three hundred ninety-seven thousand, eight hundred twenty-seven".