30764 has 6 divisors (see below), whose sum is σ = 53844. Its totient is φ = 15380.

The previous prime is 30763. The next prime is 30773. The reversal of 30764 is 46703.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (30763) 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 as a sum of consecutive naturals, namely, 3842 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (8974).

2³⁰⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

30764 is a deficient number, since it is larger than the sum of its proper divisors (23080).

30764 is a wasteful number, since it uses less digits than its factorization.

30764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695 (or 7693 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30764 is about 175.3966932413. The cubic root of 30764 is about 31.3338866157. Note that the first 3 decimals are identical.

The spelling of 30764 in words is "thirty thousand, seven hundred sixty-four".