3206661 has 4 divisors (see below), whose sum is σ = 4275552. Its totient is φ = 2137772.

The previous prime is 3206653. The next prime is 3206677. The reversal of 3206661 is 1666023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3206661 - 2³ = 3206653 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3206261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534441 + ... + 534446.

It is an arithmetic number, because the mean of its divisors is an integer number (1068888).

Almost surely, 2^3206661 is an apocalyptic number.

It is an amenable number.

3206661 is a deficient number, since it is larger than the sum of its proper divisors (1068891).

3206661 is a wasteful number, since it uses less digits than its factorization.

3206661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068890.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3206661 is about 1790.7152202402. The cubic root of 3206661 is about 147.4634363071.

The spelling of 3206661 in words is "three million, two hundred six thousand, six hundred sixty-one".