8073644 has 24 divisors (see below), whose sum is σ = 14880768. Its totient is φ = 3825360.

The previous prime is 8073641. The next prime is 8073647. The reversal of 8073644 is 4463708.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8073641) and next prime (8073647).

It is a self number, because there is not a number n which added to its sum of digits gives 8073644.

It is not an unprimeable number, because it can be changed into a prime (8073641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11339 + ... + 12029.

It is an arithmetic number, because the mean of its divisors is an integer number (620032).

Almost surely, 2^8073644 is an apocalyptic number.

It is an amenable number.

8073644 is a deficient number, since it is larger than the sum of its proper divisors (6807124).

8073644 is a wasteful number, since it uses less digits than its factorization.

8073644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 8073644 is about 2841.4158442579. The cubic root of 8073644 is about 200.6118264335.

The spelling of 8073644 in words is "eight million, seventy-three thousand, six hundred forty-four".