12643046 has 16 divisors (see below), whose sum is σ = 20520864. Its totient is φ = 5807424.

The previous prime is 12643021. The next prime is 12643049. The reversal of 12643046 is 64034621.

12643046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12643046² = 319693224316232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5015 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (1282554).

Almost surely, 2^12643046 is an apocalyptic number.

12643046 is a deficient number, since it is larger than the sum of its proper divisors (7877818).

12643046 is a wasteful number, since it uses less digits than its factorization.

12643046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 12643046 is about 3555.7061183399. The cubic root of 12643046 is about 232.9613669853.

Adding to 12643046 its reverse (64034621), we get a palindrome (76677667).

The spelling of 12643046 in words is "twelve million, six hundred forty-three thousand, forty-six".