70216943 has 2 divisors, whose sum is σ = 70216944. Its totient is φ = 70216942.

The previous prime is 70216933. The next prime is 70216961. The reversal of 70216943 is 34961207.

It is a weak prime.

It is an emirp because it is prime and its reverse (34961207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70216943 - 2⁶ = 70216879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70216933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35108471 + 35108472.

It is an arithmetic number, because the mean of its divisors is an integer number (35108472).

Almost surely, 2^70216943 is an apocalyptic number.

70216943 is a deficient number, since it is larger than the sum of its proper divisors (1).

70216943 is an equidigital number, since it uses as much as digits as its factorization.

70216943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 70216943 is about 8379.5550597869. Note that the first 3 decimals coincide. The cubic root of 70216943 is about 412.5538451902.

The spelling of 70216943 in words is "seventy million, two hundred sixteen thousand, nine hundred forty-three".