70943 has 4 divisors (see below), whose sum is σ = 72168. Its totient is φ = 69720.

The previous prime is 70937. The next prime is 70949. The reversal of 70943 is 34907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34907 = 67 ⋅521.

It is an interprime number because it is at equal distance from previous prime (70937) and next prime (70949).

It is a cyclic number.

It is not a de Polignac number, because 70943 - 2⁶ = 70879 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521 + ... + 642.

It is an arithmetic number, because the mean of its divisors is an integer number (18042).

2⁷⁰⁹⁴³ is an apocalyptic number.

70943 is a deficient number, since it is larger than the sum of its proper divisors (1225).

70943 is a wasteful number, since it uses less digits than its factorization.

70943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 70943 is about 266.3512718198. The cubic root of 70943 is about 41.3970934660.

The spelling of 70943 in words is "seventy thousand, nine hundred forty-three".