30040847 has 2 divisors, whose sum is σ = 30040848. Its totient is φ = 30040846.

The previous prime is 30040837. The next prime is 30040859. The reversal of 30040847 is 74804003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30040847 - 2¹² = 30036751 is a prime.

It is a Chen prime.

It is equal to p_1860263 and since 30040847 and 1860263 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30040807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15020423 + 15020424.

It is an arithmetic number, because the mean of its divisors is an integer number (15020424).

Almost surely, 2^30040847 is an apocalyptic number.

30040847 is a deficient number, since it is larger than the sum of its proper divisors (1).

30040847 is an equidigital number, since it uses as much as digits as its factorization.

30040847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 30040847 is about 5480.9531105456. The cubic root of 30040847 is about 310.8642101130.

The spelling of 30040847 in words is "thirty million, forty thousand, eight hundred forty-seven".