69943 has 4 divisors (see below), whose sum is σ = 73008. Its totient is φ = 66880.

The previous prime is 69941. The next prime is 69959. The reversal of 69943 is 34996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69943 - 2¹ = 69941 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69941) 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, 1498 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (18252).

2⁶⁹⁹⁴³ is an apocalyptic number.

69943 is a deficient number, since it is larger than the sum of its proper divisors (3065).

69943 is a wasteful number, since it uses less digits than its factorization.

69943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064.

The product of its digits is 5832, while the sum is 31.

The square root of 69943 is about 264.4673892940. The cubic root of 69943 is about 41.2016636146.

The spelling of 69943 in words is "sixty-nine thousand, nine hundred forty-three".