6642927 has 12 divisors (see below), whose sum is σ = 9727744. Its totient is φ = 4367520.

The previous prime is 6642919. The next prime is 6642991. The reversal of 6642927 is 7292466.

It is a happy number.

6642927 is a `hidden beast` number, since 6 + 642 + 9 + 2 + 7 = 666.

It is not a de Polignac number, because 6642927 - 2³ = 6642919 is a prime.

It is a super-4 number, since 4×6642927⁴ (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6642891 and 6642900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642907) 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, 4399 + ... + 5712.

Almost surely, 2^6642927 is an apocalyptic number.

6642927 is a deficient number, since it is larger than the sum of its proper divisors (3084817).

6642927 is a wasteful number, since it uses less digits than its factorization.

6642927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10190 (or 10187 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 6642927 is about 2577.3876309162. The cubic root of 6642927 is about 187.9835412632.

It can be divided in two parts, 6642 and 927, that added together give a square (7569 = 87²).

The spelling of 6642927 in words is "six million, six hundred forty-two thousand, nine hundred twenty-seven".