12801929 has 4 divisors (see below), whose sum is σ = 14630784. Its totient is φ = 10973076.

The previous prime is 12801923. The next prime is 12801947. The reversal of 12801929 is 92910821.

It is a happy number.

12801929 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12801929 - 2⁴ = 12801913 is a prime.

It is a super-2 number, since 2×12801929² = 327778772242082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12801895 and 12801904.

It is not an unprimeable number, because it can be changed into a prime (12801923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914417 + ... + 914430.

It is an arithmetic number, because the mean of its divisors is an integer number (3657696).

Almost surely, 2^12801929 is an apocalyptic number.

It is an amenable number.

12801929 is a deficient number, since it is larger than the sum of its proper divisors (1828855).

12801929 is an equidigital number, since it uses as much as digits as its factorization.

12801929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828854.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 12801929 is about 3577.9783397891. The cubic root of 12801929 is about 233.9331693631.

The spelling of 12801929 in words is "twelve million, eight hundred one thousand, nine hundred twenty-nine".