6927138 has 12 divisors (see below), whose sum is σ = 15008838. Its totient is φ = 2309040.

The previous prime is 6927133. The next prime is 6927139. The reversal of 6927138 is 8317296.

It can be written as a sum of positive squares in only one way, i.e., 3697929 + 3229209 = 1923^2 + 1797^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 6⁶ + 9 + 2²¹ + 7³ + 1 + 3¹⁴ + 8 .

It is not an unprimeable number, because it can be changed into a prime (6927133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192403 + ... + 192438.

Almost surely, 2^6927138 is an apocalyptic number.

6927138 is an abundant number, since it is smaller than the sum of its proper divisors (8081700).

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

6927138 is a wasteful number, since it uses less digits than its factorization.

6927138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384849 (or 384846 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6927138 is about 2631.9456681322. The cubic root of 6927138 is about 190.6270877851.

The spelling of 6927138 in words is "six million, nine hundred twenty-seven thousand, one hundred thirty-eight".