6705620 has 12 divisors (see below), whose sum is σ = 14081844. Its totient is φ = 2682240.

The previous prime is 6705619. The next prime is 6705649. The reversal of 6705620 is 265076.

It can be written as a sum of positive squares in 2 ways, for example, as 3034564 + 3671056 = 1742^2 + 1916^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6705620.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 167621 + ... + 167660.

It is an arithmetic number, because the mean of its divisors is an integer number (1173487).

Almost surely, 2^6705620 is an apocalyptic number.

It is an amenable number.

6705620 is an abundant number, since it is smaller than the sum of its proper divisors (7376224).

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

6705620 is a wasteful number, since it uses less digits than its factorization.

6705620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335290 (or 335288 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 6705620 is about 2589.5211912630. The cubic root of 6705620 is about 188.5730590396.

It can be divided in two parts, 67056 and 20, that added together give a palindrome (67076).

The spelling of 6705620 in words is "six million, seven hundred five thousand, six hundred twenty".