30730547 has 2 divisors, whose sum is σ = 30730548. Its totient is φ = 30730546.

The previous prime is 30730529. The next prime is 30730561. The reversal of 30730547 is 74503703.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30730547 - 2¹⁴ = 30714163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30730597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15365273 + 15365274.

It is an arithmetic number, because the mean of its divisors is an integer number (15365274).

Almost surely, 2^30730547 is an apocalyptic number.

30730547 is a deficient number, since it is larger than the sum of its proper divisors (1).

30730547 is an equidigital number, since it uses as much as digits as its factorization.

30730547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 30730547 is about 5543.5139577708. The cubic root of 30730547 is about 313.2252493010.

The spelling of 30730547 in words is "thirty million, seven hundred thirty thousand, five hundred forty-seven".