12829947 has 16 divisors (see below), whose sum is σ = 18727968. Its totient is φ = 7764480.

The previous prime is 12829937. The next prime is 12829961. The reversal of 12829947 is 74992821.

It is not a de Polignac number, because 12829947 - 2⁷ = 12829819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12829899 and 12829908.

It is not an unprimeable number, because it can be changed into a prime (12829937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (1170498).

Almost surely, 2^12829947 is an apocalyptic number.

12829947 is a deficient number, since it is larger than the sum of its proper divisors (5898021).

12829947 is a wasteful number, since it uses less digits than its factorization.

12829947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470.

The product of its digits is 72576, while the sum is 42.

The square root of 12829947 is about 3581.8915393965. The cubic root of 12829947 is about 234.1037052197.

The spelling of 12829947 in words is "twelve million, eight hundred twenty-nine thousand, nine hundred forty-seven".