3391989 has 8 divisors (see below), whose sum is σ = 4668672. Its totient is φ = 2188320.

The previous prime is 3391987. The next prime is 3391991. The reversal of 3391989 is 9891933.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3391987) and next prime (3391991).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3391989 - 2¹ = 3391987 is a prime.

It is a super-2 number, since 2×3391989² = 23011178752242, which contains 22 as substring.

3391989 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3391989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3391987) 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, 18144 + ... + 18329.

It is an arithmetic number, because the mean of its divisors is an integer number (583584).

Almost surely, 2^3391989 is an apocalyptic number.

It is an amenable number.

3391989 is a deficient number, since it is larger than the sum of its proper divisors (1276683).

3391989 is a wasteful number, since it uses less digits than its factorization.

3391989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36507.

The product of its digits is 52488, while the sum is 42.

The square root of 3391989 is about 1841.7353230038. The cubic root of 3391989 is about 150.2512677507.

The spelling of 3391989 in words is "three million, three hundred ninety-one thousand, nine hundred eighty-nine".