69609 has 4 divisors (see below), whose sum is σ = 92816. Its totient is φ = 46404.

The previous prime is 69593. The next prime is 69623. The reversal of 69609 is 90696.

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.

It is not a de Polignac number, because 69609 - 2⁴ = 69593 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69609.

It is not an unprimeable number, because it can be changed into a prime (69109) 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, 11599 + ... + 11604.

It is an arithmetic number, because the mean of its divisors is an integer number (23204).

2⁶⁹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

69609 is a deficient number, since it is larger than the sum of its proper divisors (23207).

69609 is a wasteful number, since it uses less digits than its factorization.

69609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23206.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 69609 is about 263.8351758201. The cubic root of 69609 is about 41.1359752737.

The spelling of 69609 in words is "sixty-nine thousand, six hundred nine".