12729099 has 8 divisors (see below), whose sum is σ = 17004240. Its totient is φ = 8470016.

The previous prime is 12729091. The next prime is 12729109. The reversal of 12729099 is 99092721.

It is a happy number.

12729099 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12729099 - 2³ = 12729091 is a prime.

It is a super-2 number, since 2×12729099² = 324059922703602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12729091) 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 7 ways as a sum of consecutive naturals, for example, 2022 + ... + 5435.

It is an arithmetic number, because the mean of its divisors is an integer number (2125530).

Almost surely, 2^12729099 is an apocalyptic number.

12729099 is a deficient number, since it is larger than the sum of its proper divisors (4275141).

12729099 is an equidigital number, since it uses as much as digits as its factorization.

12729099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8029.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 12729099 is about 3567.7862884427. The cubic root of 12729099 is about 233.4887112493.

The spelling of 12729099 in words is "twelve million, seven hundred twenty-nine thousand, ninety-nine".