12578794 has 4 divisors (see below), whose sum is σ = 18868194. Its totient is φ = 6289396.

The previous prime is 12578767. The next prime is 12578801. The reversal of 12578794 is 49787521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49787521 = 7 ⋅7112503.

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 1787569 = 3285^2 + 1337^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12578794.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3144697 + ... + 3144700.

Almost surely, 2^12578794 is an apocalyptic number.

12578794 is a deficient number, since it is larger than the sum of its proper divisors (6289400).

12578794 is an equidigital number, since it uses as much as digits as its factorization.

12578794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6289399.

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

The square root of 12578794 is about 3546.6595551307. The cubic root of 12578794 is about 232.5660597735.

The spelling of 12578794 in words is "twelve million, five hundred seventy-eight thousand, seven hundred ninety-four".