12912738 has 8 divisors (see below), whose sum is σ = 25825488. Its totient is φ = 4304244.

The previous prime is 12912719. The next prime is 12912769. The reversal of 12912738 is 83721921.

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

12912738 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12912699 and 12912708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076056 + ... + 1076067.

It is an arithmetic number, because the mean of its divisors is an integer number (3228186).

Almost surely, 2^12912738 is an apocalyptic number.

12912738 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.

12912738 is a wasteful number, since it uses less digits than its factorization.

12912738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152128.

The product of its digits is 6048, while the sum is 33.

The square root of 12912738 is about 3593.4298379125. The cubic root of 12912738 is about 234.6061790805.

The spelling of 12912738 in words is "twelve million, nine hundred twelve thousand, seven hundred thirty-eight".