12663434 has 8 divisors (see below), whose sum is σ = 21708768. Its totient is φ = 5427180.

The previous prime is 12663433. The next prime is 12663439. The reversal of 12663434 is 43436621.

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

It is a junction number, because it is equal to n+sod(n) for n = 12663397 and 12663406.

It is not an unprimeable number, because it can be changed into a prime (12663433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452252 + ... + 452279.

It is an arithmetic number, because the mean of its divisors is an integer number (2713596).

Almost surely, 2^12663434 is an apocalyptic number.

12663434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12663434 is a deficient number, since it is larger than the sum of its proper divisors (9045334).

12663434 is an equidigital number, since it uses as much as digits as its factorization.

12663434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904540.

The product of its digits is 10368, while the sum is 29.

The square root of 12663434 is about 3558.5719045707. The cubic root of 12663434 is about 233.0865231536.

The spelling of 12663434 in words is "twelve million, six hundred sixty-three thousand, four hundred thirty-four".