8012644 has 12 divisors (see below), whose sum is σ = 14847084. Its totient is φ = 3770624.

The previous prime is 8012639. The next prime is 8012647. The reversal of 8012644 is 4462108.

It can be written as a sum of positive squares in 2 ways, for example, as 2433600 + 5579044 = 1560^2 + 2362^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012647) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 58849 + ... + 58984.

It is an arithmetic number, because the mean of its divisors is an integer number (1237257).

Almost surely, 2^8012644 is an apocalyptic number.

It is an amenable number.

8012644 is a deficient number, since it is larger than the sum of its proper divisors (6834440).

8012644 is a wasteful number, since it uses less digits than its factorization.

8012644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117854 (or 117852 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 8012644 is about 2830.6614068094. The cubic root of 8012644 is about 200.1053112047.

Subtracting from 8012644 its product of nonzero digits (1536), we obtain a palindrome (8011108).

The spelling of 8012644 in words is "eight million, twelve thousand, six hundred forty-four".