12349786 has 16 divisors (see below), whose sum is σ = 20146536. Its totient is φ = 5654016.

The previous prime is 12349759. The next prime is 12349787. The reversal of 12349786 is 68794321.

It can be written as a sum of positive squares in 4 ways, for example, as 11015761 + 1334025 = 3319^2 + 1155^2 .

It is not an unprimeable number, because it can be changed into a prime (12349787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3651 + ... + 6166.

Almost surely, 2^12349786 is an apocalyptic number.

12349786 is a deficient number, since it is larger than the sum of its proper divisors (7796750).

12349786 is a wasteful number, since it uses less digits than its factorization.

12349786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873.

The product of its digits is 72576, while the sum is 40.

The square root of 12349786 is about 3514.2262306232. The cubic root of 12349786 is about 231.1460505779.

The spelling of 12349786 in words is "twelve million, three hundred forty-nine thousand, seven hundred eighty-six".