6642733 has 8 divisors (see below), whose sum is σ = 7058880. Its totient is φ = 6229440.

The previous prime is 6642709. The next prime is 6642763. The reversal of 6642733 is 3372466.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6642733 is a prime.

It is a d-powerful number, because it can be written as 6³ + 6⁸ + 4⁴ + 2⁷ + 7⁴ + 3¹¹ + 3¹⁴ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6642695 and 6642704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5928 + ... + 6958.

It is an arithmetic number, because the mean of its divisors is an integer number (882360).

Almost surely, 2^6642733 is an apocalyptic number.

It is an amenable number.

6642733 is a deficient number, since it is larger than the sum of its proper divisors (416147).

6642733 is a wasteful number, since it uses less digits than its factorization.

6642733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427.

The product of its digits is 18144, while the sum is 31.

The square root of 6642733 is about 2577.3499956351. The cubic root of 6642733 is about 187.9817112887.

The spelling of 6642733 in words is "six million, six hundred forty-two thousand, seven hundred thirty-three".