3431989 has 8 divisors (see below), whose sum is σ = 3941280. Its totient is φ = 2955600.

The previous prime is 3431963. The next prime is 3431993. The reversal of 3431989 is 9891343.

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

It is a cyclic number.

It is not a de Polignac number, because 3431989 - 2¹⁷ = 3300917 is a prime.

It is a super-2 number, since 2×3431989² = 23557096992242, 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 (3431999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8002 + ... + 8419.

It is an arithmetic number, because the mean of its divisors is an integer number (492660).

Almost surely, 2^3431989 is an apocalyptic number.

It is an amenable number.

3431989 is a deficient number, since it is larger than the sum of its proper divisors (509291).

3431989 is a wasteful number, since it uses less digits than its factorization.

3431989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16451.

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

The square root of 3431989 is about 1852.5628194477. The cubic root of 3431989 is about 150.8395734898.

It can be divided in two parts, 343 and 1989, that added together give a palindrome (2332).

The spelling of 3431989 in words is "three million, four hundred thirty-one thousand, nine hundred eighty-nine".