3206989 has 4 divisors (see below), whose sum is σ = 3222400. Its totient is φ = 3191580.

The previous prime is 3206971. The next prime is 3206993. The reversal of 3206989 is 9896023.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9896023 = 17 ⋅582119.

It is a cyclic number.

It is not a de Polignac number, because 3206989 - 2⁹ = 3206477 is a prime.

It is a super-2 number, since 2×3206989² = 20569556892242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3206909) 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 3 ways as a sum of consecutive naturals, for example, 7389 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (805600).

Almost surely, 2^3206989 is an apocalyptic number.

It is an amenable number.

3206989 is a deficient number, since it is larger than the sum of its proper divisors (15411).

3206989 is a wasteful number, since it uses less digits than its factorization.

3206989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15410.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 3206989 is about 1790.8068014166. The cubic root of 3206989 is about 147.4684640039.

The spelling of 3206989 in words is "three million, two hundred six thousand, nine hundred eighty-nine".