12948478 has 4 divisors (see below), whose sum is σ = 19422720. Its totient is φ = 6474238.

The previous prime is 12948473. The next prime is 12948479. The reversal of 12948478 is 87484921.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12948473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3237118 + ... + 3237121.

It is an arithmetic number, because the mean of its divisors is an integer number (4855680).

Almost surely, 2^12948478 is an apocalyptic number.

12948478 is a deficient number, since it is larger than the sum of its proper divisors (6474242).

12948478 is an equidigital number, since it uses as much as digits as its factorization.

12948478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6474241.

The product of its digits is 129024, while the sum is 43.

The square root of 12948478 is about 3598.3993663850. The cubic root of 12948478 is about 234.8224281014.

The spelling of 12948478 in words is "twelve million, nine hundred forty-eight thousand, four hundred seventy-eight".