3289864 has 8 divisors (see below), whose sum is σ = 6168510. Its totient is φ = 1644928.

The previous prime is 3289861. The next prime is 3289877. The reversal of 3289864 is 4689823.

It can be written as a sum of positive squares in only one way, i.e., 2402500 + 887364 = 1550^2 + 942^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3289861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205609 + ... + 205624.

Almost surely, 2^3289864 is an apocalyptic number.

It is an amenable number.

3289864 is a deficient number, since it is larger than the sum of its proper divisors (2878646).

3289864 is a wasteful number, since it uses less digits than its factorization.

3289864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411239 (or 411235 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 3289864 is about 1813.7982247207. The cubic root of 3289864 is about 148.7279693381.

The spelling of 3289864 in words is "three million, two hundred eighty-nine thousand, eight hundred sixty-four".