6648172 has 12 divisors (see below), whose sum is σ = 11679136. Its totient is φ = 3311280.

The previous prime is 6648143. The next prime is 6648203. The reversal of 6648172 is 2718466.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983 + ... + 4150.

Almost surely, 2^6648172 is an apocalyptic number.

It is an amenable number.

6648172 is a deficient number, since it is larger than the sum of its proper divisors (5030964).

6648172 is a wasteful number, since it uses less digits than its factorization.

6648172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408 (or 6406 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 6648172 is about 2578.4049332872. The cubic root of 6648172 is about 188.0330031090.

It can be divided in two parts, 664 and 8172, that added together give a square (8836 = 94²).

The spelling of 6648172 in words is "six million, six hundred forty-eight thousand, one hundred seventy-two".