6646248 has 48 divisors (see below), whose sum is σ = 20573280. Its totient is φ = 1898784.

The previous prime is 6646247. The next prime is 6646259. The reversal of 6646248 is 8426466.

It is a happy number.

6646248 is a `hidden beast` number, since 6 + 646 + 2 + 4 + 8 = 666.

6646248 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6646248² = 88345224955008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

6646248 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (6646247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6090 + ... + 7097.

It is an arithmetic number, because the mean of its divisors is an integer number (428610).

Almost surely, 2^6646248 is an apocalyptic number.

It is an amenable number.

6646248 is an abundant number, since it is smaller than the sum of its proper divisors (13927032).

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

6646248 is a wasteful number, since it uses less digits than its factorization.

6646248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13206 (or 13199 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 6646248 is about 2578.0318074066. The cubic root of 6646248 is about 188.0148622625.

The spelling of 6646248 in words is "six million, six hundred forty-six thousand, two hundred forty-eight".