12929478 has 8 divisors (see below), whose sum is σ = 25858968. Its totient is φ = 4309824.

The previous prime is 12929467. The next prime is 12929507. The reversal of 12929478 is 87492921.

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

12929478 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1077451 + ... + 1077462.

It is an arithmetic number, because the mean of its divisors is an integer number (3232371).

Almost surely, 2^12929478 is an apocalyptic number.

12929478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12929478 is a wasteful number, since it uses less digits than its factorization.

12929478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154918.

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

The square root of 12929478 is about 3595.7583344824. The cubic root of 12929478 is about 234.7075160070.

The spelling of 12929478 in words is "twelve million, nine hundred twenty-nine thousand, four hundred seventy-eight".