633389 has 4 divisors (see below), whose sum is σ = 655260. Its totient is φ = 611520.

The previous prime is 633383. The next prime is 633401. The reversal of 633389 is 983336.

It is a happy number.

633389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 100489 + 532900 = 317^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 633389 - 2⁸ = 633133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 633389.

It is not an unprimeable number, because it can be changed into a prime (633383) 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, 10892 + ... + 10949.

It is an arithmetic number, because the mean of its divisors is an integer number (163815).

2⁶³³³⁸⁹ is an apocalyptic number.

It is an amenable number.

633389 is a deficient number, since it is larger than the sum of its proper divisors (21871).

633389 is a wasteful number, since it uses less digits than its factorization.

633389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870.

The product of its digits is 11664, while the sum is 32.

The square root of 633389 is about 795.8573992871. The cubic root of 633389 is about 85.8796314986.

The spelling of 633389 in words is "six hundred thirty-three thousand, three hundred eighty-nine".