12793478 has 8 divisors (see below), whose sum is σ = 19205472. Its totient is φ = 6391656.

The previous prime is 12793477. The next prime is 12793499. The reversal of 12793478 is 87439721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12793477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3176 + ... + 5972.

It is an arithmetic number, because the mean of its divisors is an integer number (2400684).

Almost surely, 2^12793478 is an apocalyptic number.

12793478 is a deficient number, since it is larger than the sum of its proper divisors (6411994).

12793478 is a wasteful number, since it uses less digits than its factorization.

12793478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086.

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

The square root of 12793478 is about 3576.7971706542. The cubic root of 12793478 is about 233.8816822162.

The spelling of 12793478 in words is "twelve million, seven hundred ninety-three thousand, four hundred seventy-eight".