6748644 has 24 divisors (see below), whose sum is σ = 17996608. Its totient is φ = 1928160.

The previous prime is 6748639. The next prime is 6748673. The reversal of 6748644 is 4468476.

It is an Ulam 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, 40087 + ... + 40254.

Almost surely, 2^6748644 is an apocalyptic number.

It is an amenable number.

6748644 is an abundant number, since it is smaller than the sum of its proper divisors (11247964).

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

6748644 is a wasteful number, since it uses less digits than its factorization.

6748644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80355 (or 80353 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 6748644 is about 2597.8152359242. The cubic root of 6748644 is about 188.9755014297.

The spelling of 6748644 in words is "six million, seven hundred forty-eight thousand, six hundred forty-four".