12247946 has 8 divisors (see below), whose sum is σ = 18673284. Its totient is φ = 6023520.

The previous prime is 12247931. The next prime is 12247981. The reversal of 12247946 is 64974221.

It can be written as a sum of positive squares in 2 ways, for example, as 11122225 + 1125721 = 3335^2 + 1061^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50075 + ... + 50318.

Almost surely, 2^12247946 is an apocalyptic number.

12247946 is a deficient number, since it is larger than the sum of its proper divisors (6425338).

12247946 is a wasteful number, since it uses less digits than its factorization.

12247946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100456.

The product of its digits is 24192, while the sum is 35.

The square root of 12247946 is about 3499.7065591275. The cubic root of 12247946 is about 230.5089297519.

The spelling of 12247946 in words is "twelve million, two hundred forty-seven thousand, nine hundred forty-six".