959989 has 8 divisors (see below), whose sum is σ = 997920. Its totient is φ = 922896.

The previous prime is 959969. The next prime is 960017. The reversal of 959989 is 989959.

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 959989 - 2⁹ = 959477 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 (959969) 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, 2974 + ... + 3280.

It is an arithmetic number, because the mean of its divisors is an integer number (124740).

2⁹⁵⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

959989 is a deficient number, since it is larger than the sum of its proper divisors (37931).

959989 is a wasteful number, since it uses less digits than its factorization.

959989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its digits is 262440, while the sum is 49.

The square root of 959989 is about 979.7902836832. The cubic root of 959989 is about 98.6481061894.

The spelling of 959989 in words is "nine hundred fifty-nine thousand, nine hundred eighty-nine".