30733 has 4 divisors (see below), whose sum is σ = 31228. Its totient is φ = 30240.

The previous prime is 30727. The next prime is 30757. The reversal of 30733 is 33703.

30733 is nontrivially palindromic in base 12.

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 6084 + 24649 = 78^2 + 157^2 .

It is a cyclic number.

It is not a de Polignac number, because 30733 - 2¹³ = 22541 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 (30703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138 + ... + 283.

It is an arithmetic number, because the mean of its divisors is an integer number (7807).

2³⁰⁷³³ is an apocalyptic number.

It is an amenable number.

30733 is a deficient number, since it is larger than the sum of its proper divisors (495).

30733 is an equidigital number, since it uses as much as digits as its factorization.

30733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494.

The product of its (nonzero) digits is 189, while the sum is 16.

The square root of 30733 is about 175.3082998606. The cubic root of 30733 is about 31.3233583257.

The spelling of 30733 in words is "thirty thousand, seven hundred thirty-three".