6646374 has 40 divisors (see below), whose sum is σ = 17023248. Its totient is φ = 1898640.

The previous prime is 6646373. The next prime is 6646399. The reversal of 6646374 is 4736466.

6646374 is a `hidden beast` number, since 6 + 646 + 3 + 7 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646373) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1797 + ... + 4064.

Almost surely, 2^6646374 is an apocalyptic number.

6646374 is an abundant number, since it is smaller than the sum of its proper divisors (10376874).

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

6646374 is a wasteful number, since it uses less digits than its factorization.

6646374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882 (or 5873 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 6646374 is about 2578.0562445377. The cubic root of 6646374 is about 188.0160503876.

The spelling of 6646374 in words is "six million, six hundred forty-six thousand, three hundred seventy-four".