12758738 has 8 divisors (see below), whose sum is σ = 20263932. Its totient is φ = 6004096.

The previous prime is 12758731. The next prime is 12758741. The reversal of 12758738 is 83785721.

12758738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10156969 + 2601769 = 3187^2 + 1613^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12758695 and 12758704.

It is not an unprimeable number, because it can be changed into a prime (12758731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187595 + ... + 187662.

Almost surely, 2^12758738 is an apocalyptic number.

12758738 is a deficient number, since it is larger than the sum of its proper divisors (7505194).

12758738 is a wasteful number, since it uses less digits than its factorization.

12758738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375276.

The product of its digits is 94080, while the sum is 41.

The square root of 12758738 is about 3571.9375694432. The cubic root of 12758738 is about 233.6697926077.

The spelling of 12758738 in words is "twelve million, seven hundred fifty-eight thousand, seven hundred thirty-eight".