6928281 has 8 divisors (see below), whose sum is σ = 10264160. Its totient is φ = 4618836.

The previous prime is 6928279. The next prime is 6928291. The reversal of 6928281 is 1828296.

It is not a de Polignac number, because 6928281 - 2¹ = 6928279 is a prime.

It is a super-2 number, since 2×6928281² = 96002155229922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (6928241) 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, 128275 + ... + 128328.

It is an arithmetic number, because the mean of its divisors is an integer number (1283020).

Almost surely, 2^6928281 is an apocalyptic number.

It is an amenable number.

6928281 is a deficient number, since it is larger than the sum of its proper divisors (3335879).

6928281 is a wasteful number, since it uses less digits than its factorization.

6928281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256612 (or 256606 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 6928281 is about 2632.1627989165. The cubic root of 6928281 is about 190.6375719022.

The spelling of 6928281 in words is "six million, nine hundred twenty-eight thousand, two hundred eighty-one".