819696 has 20 divisors (see below), whose sum is σ = 2117672. Its totient is φ = 273216.

The previous prime is 819691. The next prime is 819701. The reversal of 819696 is 696918.

It is an interprime number because it is at equal distance from previous prime (819691) and next prime (819701).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819691) by changing a digit.

819696 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 3 ways as a sum of consecutive naturals, for example, 8491 + ... + 8586.

2⁸¹⁹⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

819696 is an abundant number, since it is smaller than the sum of its proper divisors (1297976).

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

819696 is a wasteful number, since it uses less digits than its factorization.

819696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17088 (or 17082 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 819696 is about 905.3706423338. The cubic root of 819696 is about 93.5874480940.

The spelling of 819696 in words is "eight hundred nineteen thousand, six hundred ninety-six".