6840704 has 32 divisors (see below), whose sum is σ = 14679840. Its totient is φ = 3156480.

The previous prime is 6840661. The next prime is 6840721. The reversal of 6840704 is 4070486.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392 + ... + 3719.

It is an arithmetic number, because the mean of its divisors is an integer number (458745).

Almost surely, 2^6840704 is an apocalyptic number.

6840704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6840704 is an abundant number, since it is smaller than the sum of its proper divisors (7839136).

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

6840704 is a wasteful number, since it uses less digits than its factorization.

6840704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138 (or 4126 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 6840704 is about 2615.4739532253. The cubic root of 6840704 is about 189.8309114312.

The spelling of 6840704 in words is "six million, eight hundred forty thousand, seven hundred four".