6828669 has 6 divisors (see below), whose sum is σ = 9863646. Its totient is φ = 4552440.

The previous prime is 6828667. The next prime is 6828727. The reversal of 6828669 is 9668286.

6828669 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6827769 + 900 = 2613^2 + 30^2 .

It is not a de Polignac number, because 6828669 - 2¹ = 6828667 is a prime.

It is a super-2 number, since 2×6828669² = 93261440623122, which contains 22 as substring.

It is an Ulam number.

6828669 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6828667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379362 + ... + 379379.

It is an arithmetic number, because the mean of its divisors is an integer number (1643941).

Almost surely, 2^6828669 is an apocalyptic number.

It is an amenable number.

6828669 is a deficient number, since it is larger than the sum of its proper divisors (3034977).

6828669 is a wasteful number, since it uses less digits than its factorization.

6828669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758747 (or 758744 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 6828669 is about 2613.1722101691. The cubic root of 6828669 is about 189.7195215254.

The spelling of 6828669 in words is "six million, eight hundred twenty-eight thousand, six hundred sixty-nine".