69989 has 8 divisors (see below), whose sum is σ = 77760. Its totient is φ = 62656.

The previous prime is 69959. The next prime is 69991. The reversal of 69989 is 98996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69989 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69989.

It is not an unprimeable number, because it can be changed into a prime (69929) 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 7 ways as a sum of consecutive naturals, for example, 302 + ... + 480.

It is an arithmetic number, because the mean of its divisors is an integer number (9720).

2⁶⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

69989 is a deficient number, since it is larger than the sum of its proper divisors (7771).

69989 is a wasteful number, since it uses less digits than its factorization.

69989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its digits is 34992, while the sum is 41.

The square root of 69989 is about 264.5543422437. The cubic root of 69989 is about 41.2106941165.

It can be divided in two parts, 6998 and 9, that added together give a palindrome (7007).

The spelling of 69989 in words is "sixty-nine thousand, nine hundred eighty-nine".