6705890 has 16 divisors (see below), whose sum is σ = 12165120. Its totient is φ = 2661360.

The previous prime is 6705887. The next prime is 6705899. The reversal of 6705890 is 985076.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6705890.

It is not an unprimeable number, because it can be changed into a prime (6705899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (760320).

Almost surely, 2^6705890 is an apocalyptic number.

6705890 is a deficient number, since it is larger than the sum of its proper divisors (5459230).

6705890 is a wasteful number, since it uses less digits than its factorization.

6705890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 6705890 is about 2589.5733239281. The cubic root of 6705890 is about 188.5755899536.

The spelling of 6705890 in words is "six million, seven hundred five thousand, eight hundred ninety".