12758947 has 4 divisors (see below), whose sum is σ = 12852216. Its totient is φ = 12665680.

The previous prime is 12758929. The next prime is 12758957. The reversal of 12758947 is 74985721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74985721 = 6337 ⋅11833.

It is a cyclic number.

It is not a de Polignac number, because 12758947 - 2¹⁵ = 12726179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12758957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46429 + ... + 46702.

It is an arithmetic number, because the mean of its divisors is an integer number (3213054).

Almost surely, 2^12758947 is an apocalyptic number.

12758947 is a deficient number, since it is larger than the sum of its proper divisors (93269).

12758947 is an equidigital number, since it uses as much as digits as its factorization.

12758947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93268.

The product of its digits is 141120, while the sum is 43.

The square root of 12758947 is about 3571.9668251539. The cubic root of 12758947 is about 233.6710685103.

The spelling of 12758947 in words is "twelve million, seven hundred fifty-eight thousand, nine hundred forty-seven".