6645892 has 24 divisors (see below), whose sum is σ = 12795552. Its totient is φ = 2995200.

The previous prime is 6645887. The next prime is 6645907. The reversal of 6645892 is 2985466.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5188 + ... + 6340.

It is an arithmetic number, because the mean of its divisors is an integer number (533148).

Almost surely, 2^6645892 is an apocalyptic number.

It is an amenable number.

6645892 is a deficient number, since it is larger than the sum of its proper divisors (6149660).

6645892 is a wasteful number, since it uses less digits than its factorization.

6645892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1297 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 6645892 is about 2577.9627615619. The cubic root of 6645892 is about 188.0115052563.

It can be divided in two parts, 664 and 5892, that added together give a palindrome (6556).

The spelling of 6645892 in words is "six million, six hundred forty-five thousand, eight hundred ninety-two".