12378794 has 12 divisors (see below), whose sum is σ = 19116774. Its totient is φ = 6007392.

The previous prime is 12378787. The next prime is 12378799. The reversal of 12378794 is 49787321.

It can be written as a sum of positive squares in 3 ways, for example, as 11135569 + 1243225 = 3337^2 + 1115^2 .

Its product of digits (84672) is a multiple of the sum of its prime divisors (448).

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12378799) 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 5 ways as a sum of consecutive naturals, for example, 30062 + ... + 30470.

Almost surely, 2^12378794 is an apocalyptic number.

12378794 is a deficient number, since it is larger than the sum of its proper divisors (6737980).

12378794 is an frugal number, since it uses more digits than its factorization.

12378794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 448 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 12378794 is about 3518.3510342204. The cubic root of 12378794 is about 231.3268861457.

The spelling of 12378794 in words is "twelve million, three hundred seventy-eight thousand, seven hundred ninety-four".