69973 has 4 divisors (see below), whose sum is σ = 70560. Its totient is φ = 69388.

The previous prime is 69959. The next prime is 69991. The reversal of 69973 is 37996.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 69973 - 2⁵ = 69941 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43 + ... + 376.

It is an arithmetic number, because the mean of its divisors is an integer number (17640).

2⁶⁹⁹⁷³ is an apocalyptic number.

It is an amenable number.

69973 is a deficient number, since it is larger than the sum of its proper divisors (587).

69973 is a wasteful number, since it uses less digits than its factorization.

69973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its digits is 10206, while the sum is 34.

The square root of 69973 is about 264.5241009814. The cubic root of 69973 is about 41.2075535213.

Adding to 69973 its sum of digits (34), we get a palindrome (70007).

The spelling of 69973 in words is "sixty-nine thousand, nine hundred seventy-three".