7660644 has 24 divisors (see below), whose sum is σ = 17978688. Its totient is φ = 2538720.

The previous prime is 7660643. The next prime is 7660649. The reversal of 7660644 is 4460667.

It is not an unprimeable number, because it can be changed into a prime (7660643) 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 7 ways as a sum of consecutive naturals, for example, 409 + ... + 3935.

It is an arithmetic number, because the mean of its divisors is an integer number (749112).

Almost surely, 2^7660644 is an apocalyptic number.

It is an amenable number.

7660644 is an abundant number, since it is smaller than the sum of its proper divisors (10318044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7660644 is a wasteful number, since it uses less digits than its factorization.

7660644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 7660644 is about 2767.7868415035. The cubic root of 7660644 is about 197.1310765007.

The spelling of 7660644 in words is "seven million, six hundred sixty thousand, six hundred forty-four".