955989 has 8 divisors (see below), whose sum is σ = 1416320. Its totient is φ = 637308.

The previous prime is 955987. The next prime is 955991. The reversal of 955989 is 989559.

It is an interprime number because it is at equal distance from previous prime (955987) and next prime (955991).

It is not a de Polignac number, because 955989 - 2¹ = 955987 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (955987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17677 + ... + 17730.

It is an arithmetic number, because the mean of its divisors is an integer number (177040).

2⁹⁵⁵⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

955989 is a deficient number, since it is larger than the sum of its proper divisors (460331).

955989 is a wasteful number, since it uses less digits than its factorization.

955989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35416 (or 35410 counting only the distinct ones).

The product of its digits is 145800, while the sum is 45.

The square root of 955989 is about 977.7468997650. The cubic root of 955989 is about 98.5109026213.

It can be divided in two parts, 95 and 5989, that added together give a square (6084 = 78²).

The spelling of 955989 in words is "nine hundred fifty-five thousand, nine hundred eighty-nine".