30472847 has 2 divisors, whose sum is σ = 30472848. Its totient is φ = 30472846.

The previous prime is 30472837. The next prime is 30472889. The reversal of 30472847 is 74827403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30472847 - 2¹⁰ = 30471823 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 (30472807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15236423 + 15236424.

It is an arithmetic number, because the mean of its divisors is an integer number (15236424).

Almost surely, 2^30472847 is an apocalyptic number.

30472847 is a deficient number, since it is larger than the sum of its proper divisors (1).

30472847 is an equidigital number, since it uses as much as digits as its factorization.

30472847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 30472847 is about 5520.2216441009. The cubic root of 30472847 is about 312.3472431012.

The spelling of 30472847 in words is "thirty million, four hundred seventy-two thousand, eight hundred forty-seven".