6333989 has 4 divisors (see below), whose sum is σ = 6390156. Its totient is φ = 6277824.

The previous prime is 6333961. The next prime is 6334007. The reversal of 6333989 is 9893336.

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 2464900 + 3869089 = 1570^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 6333989 - 2¹² = 6329893 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 (6333959) 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, 27914 + ... + 28139.

It is an arithmetic number, because the mean of its divisors is an integer number (1597539).

Almost surely, 2^6333989 is an apocalyptic number.

It is an amenable number.

6333989 is a deficient number, since it is larger than the sum of its proper divisors (56167).

6333989 is a wasteful number, since it uses less digits than its factorization.

6333989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56166.

The product of its digits is 104976, while the sum is 41.

The square root of 6333989 is about 2516.7417428095. The cubic root of 6333989 is about 185.0230212403.

The spelling of 6333989 in words is "six million, three hundred thirty-three thousand, nine hundred eighty-nine".