12699306 has 48 divisors (see below), whose sum is σ = 29787264. Its totient is φ = 3894912.

The previous prime is 12699283. The next prime is 12699307. The reversal of 12699306 is 60399621.

It is a super-2 number, since 2×12699306² = 322544745763272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12699307) 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 23 ways as a sum of consecutive naturals, for example, 13941 + ... + 14823.

It is an arithmetic number, because the mean of its divisors is an integer number (620568).

Almost surely, 2^12699306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12699306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14893632).

12699306 is an abundant number, since it is smaller than the sum of its proper divisors (17087958).

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

12699306 is a wasteful number, since it uses less digits than its factorization.

12699306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 12699306 is about 3563.6085643628. The cubic root of 12699306 is about 233.3064055093.

The spelling of 12699306 in words is "twelve million, six hundred ninety-nine thousand, three hundred six".