609696 has 72 divisors (see below), whose sum is σ = 1818180. Its totient is φ = 193536.

The previous prime is 609683. The next prime is 609701. The reversal of 609696 is 696906.

It can be written as a sum of positive squares in 2 ways, for example, as 608400 + 1296 = 780^2 + 36^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 609696.

It is an unprimeable number.

609696 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8316 + ... + 8388.

2⁶⁰⁹⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909090).

609696 is an abundant number, since it is smaller than the sum of its proper divisors (1208484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609696 is a wasteful number, since it uses less digits than its factorization.

609696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 609696 is about 780.8303272799. The cubic root of 609696 is about 84.7951700109.

The spelling of 609696 in words is "six hundred nine thousand, six hundred ninety-six".