12733906 has 4 divisors (see below), whose sum is σ = 19100862. Its totient is φ = 6366952.

The previous prime is 12733879. The next prime is 12733913. The reversal of 12733906 is 60933721.

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

It can be written as a sum of positive squares in only one way, i.e., 11390625 + 1343281 = 3375^2 + 1159^2 .

It is a zygodrome in base 5.

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, 3183475 + ... + 3183478.

Almost surely, 2^12733906 is an apocalyptic number.

12733906 is a deficient number, since it is larger than the sum of its proper divisors (6366956).

12733906 is an equidigital number, since it uses as much as digits as its factorization.

12733906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6366955.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 12733906 is about 3568.4598918861. The cubic root of 12733906 is about 233.5180990056.

The spelling of 12733906 in words is "twelve million, seven hundred thirty-three thousand, nine hundred six".