30671 has 2 divisors, whose sum is σ = 30672. Its totient is φ = 30670.

The previous prime is 30661. The next prime is 30677. The reversal of 30671 is 17603.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30671 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30677) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15335 + 15336.

It is an arithmetic number, because the mean of its divisors is an integer number (15336).

2³⁰⁶⁷¹ is an apocalyptic number.

30671 is a deficient number, since it is larger than the sum of its proper divisors (1).

30671 is an equidigital number, since it uses as much as digits as its factorization.

30671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 30671 is about 175.1313792557. The cubic root of 30671 is about 31.3022804872.

The spelling of 30671 in words is "thirty thousand, six hundred seventy-one".