6928489 has 2 divisors, whose sum is σ = 6928490. Its totient is φ = 6928488.

The previous prime is 6928487. The next prime is 6928511. The reversal of 6928489 is 9848296.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5736025 + 1192464 = 2395^2 + 1092^2 .

It is a cyclic number.

It is not a de Polignac number, because 6928489 - 2¹ = 6928487 is a prime.

Together with 6928487, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6928487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3464244 + 3464245.

It is an arithmetic number, because the mean of its divisors is an integer number (3464245).

Almost surely, 2^6928489 is an apocalyptic number.

It is an amenable number.

6928489 is a deficient number, since it is larger than the sum of its proper divisors (1).

6928489 is an equidigital number, since it uses as much as digits as its factorization.

6928489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 46.

The square root of 6928489 is about 2632.2023098539. The cubic root of 6928489 is about 190.6394796490.

The spelling of 6928489 in words is "six million, nine hundred twenty-eight thousand, four hundred eighty-nine".