12958729 has 8 divisors (see below), whose sum is σ = 15454080. Its totient is φ = 10624416.

The previous prime is 12958723. The next prime is 12958733. The reversal of 12958729 is 92785921.

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 12958729 - 2⁷ = 12958601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12958723) 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, 40084 + ... + 40405.

It is an arithmetic number, because the mean of its divisors is an integer number (1931760).

Almost surely, 2^12958729 is an apocalyptic number.

It is an amenable number.

12958729 is a deficient number, since it is larger than the sum of its proper divisors (2495351).

12958729 is an equidigital number, since it uses as much as digits as its factorization.

12958729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80519.

The product of its digits is 90720, while the sum is 43.

The square root of 12958729 is about 3599.8234678939. The cubic root of 12958729 is about 234.8843795204.

The spelling of 12958729 in words is "twelve million, nine hundred fifty-eight thousand, seven hundred twenty-nine".