70384147 has 2 divisors, whose sum is σ = 70384148. Its totient is φ = 70384146.

The previous prime is 70384141. The next prime is 70384157. The reversal of 70384147 is 74148307.

It is a weak prime.

It is an emirp because it is prime and its reverse (74148307) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70384147 is a prime.

It is not a weakly prime, because it can be changed into another prime (70384141) 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, 35192073 + 35192074.

It is an arithmetic number, because the mean of its divisors is an integer number (35192074).

Almost surely, 2^70384147 is an apocalyptic number.

70384147 is a deficient number, since it is larger than the sum of its proper divisors (1).

70384147 is an equidigital number, since it uses as much as digits as its factorization.

70384147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 70384147 is about 8389.5260295204. The cubic root of 70384147 is about 412.8810500364.

The spelling of 70384147 in words is "seventy million, three hundred eighty-four thousand, one hundred forty-seven".