6939828 has 36 divisors (see below), whose sum is σ = 20049120. Its totient is φ = 1982736.

The previous prime is 6939827. The next prime is 6939887. The reversal of 6939828 is 8289396.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6939828² = 96322425339168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13518 + ... + 14021.

It is an arithmetic number, because the mean of its divisors is an integer number (556920).

Almost surely, 2^6939828 is an apocalyptic number.

It is an amenable number.

6939828 is an abundant number, since it is smaller than the sum of its proper divisors (13109292).

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

6939828 is a wasteful number, since it uses less digits than its factorization.

6939828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27556 (or 27551 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 6939828 is about 2634.3553291081. The cubic root of 6939828 is about 190.7434216432.

The spelling of 6939828 in words is "six million, nine hundred thirty-nine thousand, eight hundred twenty-eight".