3208861 has 8 divisors (see below), whose sum is σ = 3290040. Its totient is φ = 3128832.

The previous prime is 3208859. The next prime is 3208867. The reversal of 3208861 is 1688023.

It can be written as a sum of positive squares in 4 ways, for example, as 4761 + 3204100 = 69^2 + 1790^2 .

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 3208861 - 2¹ = 3208859 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 (3208867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8055 + ... + 8443.

It is an arithmetic number, because the mean of its divisors is an integer number (411255).

Almost surely, 2^3208861 is an apocalyptic number.

It is an amenable number.

3208861 is a deficient number, since it is larger than the sum of its proper divisors (81179).

3208861 is a wasteful number, since it uses less digits than its factorization.

3208861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 3208861 is about 1791.3293946117. The cubic root of 3208861 is about 147.4971521044.

The spelling of 3208861 in words is "three million, two hundred eight thousand, eight hundred sixty-one".