12297906 has 20 divisors (see below), whose sum is σ = 27556782. Its totient is φ = 4099248.

The previous prime is 12297889. The next prime is 12297907. The reversal of 12297906 is 60979221.

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 3207681 = 3015^2 + 1791^2 .

It is not an unprimeable number, because it can be changed into a prime (12297907) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 37795 + ... + 38118.

Almost surely, 2^12297906 is an apocalyptic number.

12297906 is an abundant number, since it is smaller than the sum of its proper divisors (15258876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12297906 is an equidigital number, since it uses as much as digits as its factorization.

12297906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75927 (or 75918 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 12297906 is about 3506.8370364190. The cubic root of 12297906 is about 230.8219238135.

It can be divided in two parts, 12297 and 906, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 12297906 in words is "twelve million, two hundred ninety-seven thousand, nine hundred six".