6709904 has 20 divisors (see below), whose sum is σ = 13449660. Its totient is φ = 3239040.

The previous prime is 6709891. The next prime is 6709921. The reversal of 6709904 is 4099076.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1638400 + 5071504 = 1280^2 + 2252^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6767 + ... + 7694.

It is an arithmetic number, because the mean of its divisors is an integer number (672483).

Almost surely, 2^6709904 is an apocalyptic number.

It is an amenable number.

6709904 is an abundant number, since it is smaller than the sum of its proper divisors (6739756).

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

6709904 is a wasteful number, since it uses less digits than its factorization.

6709904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14498 (or 14492 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 6709904 is about 2590.3482391370. The cubic root of 6709904 is about 188.6132081986.

The spelling of 6709904 in words is "six million, seven hundred nine thousand, nine hundred four".