12929005 has 8 divisors (see below), whose sum is σ = 15562872. Its totient is φ = 10311168.

The previous prime is 12928999. The next prime is 12929009. The reversal of 12929005 is 50092921.

It can be written as a sum of positive squares in 4 ways, for example, as 915849 + 12013156 = 957^2 + 3466^2 .

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 12929005 - 2¹¹ = 12926957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12929009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2152 + ... + 5521.

It is an arithmetic number, because the mean of its divisors is an integer number (1945359).

Almost surely, 2^12929005 is an apocalyptic number.

It is an amenable number.

12929005 is a deficient number, since it is larger than the sum of its proper divisors (2633867).

12929005 is an equidigital number, since it uses as much as digits as its factorization.

12929005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 12929005 is about 3595.6925619413. The cubic root of 12929005 is about 234.7046538650.

The spelling of 12929005 in words is "twelve million, nine hundred twenty-nine thousand, five".