69947 has 4 divisors (see below), whose sum is σ = 70680.
Its totient is φ = 69216.
The previous prime is 69941. The next prime is 69959. The reversal of 69947 is 74996.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 69947 - 24 = 69931 is a prime.
It is a Duffinian number.
It is a plaindrome in base 12 and base 16.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69947.
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, 197 + ... + 422.
It is an arithmetic number, because the mean of its divisors is an integer number (17670).
269947 is an apocalyptic number.
69947 is a deficient number, since it is larger than the sum of its proper divisors (733).
69947 is a wasteful number, since it uses less digits than its factorization.
69947 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 732.
The product of its digits is 13608, while the sum is 35.
The square root of 69947 is about 264.4749515550.
The cubic root of 69947 is about 41.2024490328.
The spelling of 69947 in words is "sixty-nine thousand, nine hundred forty-seven".