933989 has 10 divisors (see below), whose sum is σ = 1092390. Its totient is φ = 798504.

The previous prime is 933979. The next prime is 934001. The reversal of 933989 is 989339.

It can be written as a sum of positive squares in only one way, i.e., 693889 + 240100 = 833^2 + 490^2 .

It is not a de Polignac number, because 933989 - 2⁴ = 933973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (933949) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2207 + ... + 2595.

It is an arithmetic number, because the mean of its divisors is an integer number (109239).

2⁹³³⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

933989 is a deficient number, since it is larger than the sum of its proper divisors (158401).

933989 is an frugal number, since it uses more digits than its factorization.

933989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 396 counting only the distinct ones).

The product of its digits is 52488, while the sum is 41.

The square root of 933989 is about 966.4310632425. The cubic root of 933989 is about 97.7493595194.

The spelling of 933989 in words is "nine hundred thirty-three thousand, nine hundred eighty-nine".