30706 has 8 divisors (see below), whose sum is σ = 49644. Its totient is φ = 14160.

The previous prime is 30703. The next prime is 30707. The reversal of 30706 is 60703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30625 + 81 = 175^2 + 9^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30706.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565 + ... + 616.

2³⁰⁷⁰⁶ is an apocalyptic number.

30706 is a deficient number, since it is larger than the sum of its proper divisors (18938).

30706 is a wasteful number, since it uses less digits than its factorization.

30706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 30706 is about 175.2312757472. The cubic root of 30706 is about 31.3141827548.

The spelling of 30706 in words is "thirty thousand, seven hundred six".