3678805 has 8 divisors (see below), whose sum is σ = 4754232. Its totient is φ = 2716608.

The previous prime is 3678803. The next prime is 3678811. The reversal of 3678805 is 5088763.

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 3678724 = 9^2 + 1918^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3678805 - 2¹ = 3678803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28234 + ... + 28363.

It is an arithmetic number, because the mean of its divisors is an integer number (594279).

Almost surely, 2^3678805 is an apocalyptic number.

It is an amenable number.

3678805 is a deficient number, since it is larger than the sum of its proper divisors (1075427).

3678805 is a wasteful number, since it uses less digits than its factorization.

3678805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56615.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 3678805 is about 1918.0211156293. The cubic root of 3678805 is about 154.3721393035.

The spelling of 3678805 in words is "three million, six hundred seventy-eight thousand, eight hundred five".