70071943 has 16 divisors (see below), whose sum is σ = 78438240. Its totient is φ = 62208000.

The previous prime is 70071941. The next prime is 70072001. The reversal of 70071943 is 34917007.

It is a cyclic number.

It is not a de Polignac number, because 70071943 - 2¹ = 70071941 is a prime.

It is a super-5 number, since 5×70071943⁵ (a number of 40 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70071941) 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 in 15 ways as a sum of consecutive naturals, for example, 129253 + ... + 129793.

It is an arithmetic number, because the mean of its divisors is an integer number (4902390).

Almost surely, 2^70071943 is an apocalyptic number.

70071943 is a deficient number, since it is larger than the sum of its proper divisors (8366297).

70071943 is a wasteful number, since it uses less digits than its factorization.

70071943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 70071943 is about 8370.8985778111. The cubic root of 70071943 is about 412.2696709858.

The spelling of 70071943 in words is "seventy million, seventy-one thousand, nine hundred forty-three".