70000043 has 2 divisors, whose sum is σ = 70000044. Its totient is φ = 70000042.

The previous prime is 70000037. The next prime is 70000057. The reversal of 70000043 is 34000007.

It is an a-pointer prime, because the next prime (70000057) can be obtained adding 70000043 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70000043 - 2⁴ = 70000027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69999982 and 70000027.

It is not a weakly prime, because it can be changed into another prime (70000093) 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, 35000021 + 35000022.

It is an arithmetic number, because the mean of its divisors is an integer number (35000022).

Almost surely, 2^70000043 is an apocalyptic number.

70000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

70000043 is an equidigital number, since it uses as much as digits as its factorization.

70000043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 70000043 is about 8366.6028350819. The cubic root of 70000043 is about 412.1286143691.

It can be divided in two parts, 7000004 and 3, that multiplied together give a palindrome (21000012).

The spelling of 70000043 in words is "seventy million, forty-three", and thus it is an aban number and an uban number.