70939 has 4 divisors (see below), whose sum is σ = 77400. Its totient is φ = 64480.

The previous prime is 70937. The next prime is 70949. The reversal of 70939 is 93907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93907 = 11 ⋅8537.

It is a cyclic number.

It is not a de Polignac number, because 70939 - 2¹ = 70937 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70937) 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, 3214 + ... + 3235.

It is an arithmetic number, because the mean of its divisors is an integer number (19350).

2⁷⁰⁹³⁹ is an apocalyptic number.

70939 is a deficient number, since it is larger than the sum of its proper divisors (6461).

70939 is a wasteful number, since it uses less digits than its factorization.

70939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 70939 is about 266.3437628329. The cubic root of 70939 is about 41.3963154165.

The spelling of 70939 in words is "seventy thousand, nine hundred thirty-nine".