3009989 has 4 divisors (see below), whose sum is σ = 3020556. Its totient is φ = 2999424.

The previous prime is 3009977. The next prime is 3009991. The reversal of 3009989 is 9899003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1890625 + 1119364 = 1375^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 3009989 - 2⁴ = 3009973 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 (3009959) 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, 4844 + ... + 5429.

It is an arithmetic number, because the mean of its divisors is an integer number (755139).

Almost surely, 2^3009989 is an apocalyptic number.

It is an amenable number.

3009989 is a deficient number, since it is larger than the sum of its proper divisors (10567).

3009989 is a wasteful number, since it uses less digits than its factorization.

3009989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10566.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 3009989 is about 1734.9319871396. The cubic root of 3009989 is about 144.3848533720.

The spelling of 3009989 in words is "three million, nine thousand, nine hundred eighty-nine".