6928181 has 8 divisors (see below), whose sum is σ = 7482720. Its totient is φ = 6376752.

The previous prime is 6928171. The next prime is 6928219. The reversal of 6928181 is 1818296.

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

It is a cyclic number.

It is not a de Polignac number, because 6928181 - 2¹⁴ = 6911797 is a prime.

It is a super-2 number, since 2×6928181² = 95999383937522, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6928111) 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, 6290 + ... + 7308.

It is an arithmetic number, because the mean of its divisors is an integer number (935340).

Almost surely, 2^6928181 is an apocalyptic number.

It is an amenable number.

6928181 is a deficient number, since it is larger than the sum of its proper divisors (554539).

6928181 is a wasteful number, since it uses less digits than its factorization.

6928181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its digits is 6912, while the sum is 35.

The square root of 6928181 is about 2632.1438030624. The cubic root of 6928181 is about 190.6366547026.

The spelling of 6928181 in words is "six million, nine hundred twenty-eight thousand, one hundred eighty-one".