30047 has 2 divisors, whose sum is σ = 30048. Its totient is φ = 30046.

The previous prime is 30029. The next prime is 30059. The reversal of 30047 is 74003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30047 - 2⁶ = 29983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30097) 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 as a sum of consecutive naturals, namely, 15023 + 15024.

It is an arithmetic number, because the mean of its divisors is an integer number (15024).

2³⁰⁰⁴⁷ is an apocalyptic number.

30047 is a deficient number, since it is larger than the sum of its proper divisors (1).

30047 is an equidigital number, since it uses as much as digits as its factorization.

30047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 30047 is about 173.3407049715. The cubic root of 30047 is about 31.0885432516.

Subtracting 30047 from its reverse (74003), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 30047 in words is "thirty thousand, forty-seven".