12953678 has 4 divisors (see below), whose sum is σ = 19430520. Its totient is φ = 6476838.

The previous prime is 12953659. The next prime is 12953701. The reversal of 12953678 is 87635921.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3238418 + ... + 3238421.

It is an arithmetic number, because the mean of its divisors is an integer number (4857630).

Almost surely, 2^12953678 is an apocalyptic number.

12953678 is a deficient number, since it is larger than the sum of its proper divisors (6476842).

12953678 is an equidigital number, since it uses as much as digits as its factorization.

12953678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476841.

The product of its digits is 90720, while the sum is 41.

The square root of 12953678 is about 3599.1218373375. The cubic root of 12953678 is about 234.8538581326.

It can be divided in two parts, 12953 and 678, that added together give a palindrome (13631).

The spelling of 12953678 in words is "twelve million, nine hundred fifty-three thousand, six hundred seventy-eight".