12397834 has 4 divisors (see below), whose sum is σ = 18596754. Its totient is φ = 6198916.

The previous prime is 12397829. The next prime is 12397837. The reversal of 12397834 is 43879321.

12397834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 2569609 = 3135^2 + 1603^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12397793 and 12397802.

It is not an unprimeable number, because it can be changed into a prime (12397837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3099457 + ... + 3099460.

Almost surely, 2^12397834 is an apocalyptic number.

12397834 is a deficient number, since it is larger than the sum of its proper divisors (6198920).

12397834 is an equidigital number, since it uses as much as digits as its factorization.

12397834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198919.

The product of its digits is 36288, while the sum is 37.

The square root of 12397834 is about 3521.0558075668. The cubic root of 12397834 is about 231.4454277864.

It can be divided in two parts, 12397 and 834, that added together give a palindrome (13231).

The spelling of 12397834 in words is "twelve million, three hundred ninety-seven thousand, eight hundred thirty-four".