6642706 has 8 divisors (see below), whose sum is σ = 11387520. Its totient is φ = 2846868.

The previous prime is 6642659. The next prime is 6642707. The reversal of 6642706 is 6072466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237226 + ... + 237253.

It is an arithmetic number, because the mean of its divisors is an integer number (1423440).

Almost surely, 2^6642706 is an apocalyptic number.

6642706 is a deficient number, since it is larger than the sum of its proper divisors (4744814).

6642706 is a wasteful number, since it uses less digits than its factorization.

6642706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474488.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6642706 is about 2577.3447576915. The cubic root of 6642706 is about 187.9814565987.

The spelling of 6642706 in words is "six million, six hundred forty-two thousand, seven hundred six".