823908 has 12 divisors (see below), whose sum is σ = 1922480. Its totient is φ = 274632.

The previous prime is 823903. The next prime is 823913. The reversal of 823908 is 809328.

It is an interprime number because it is at equal distance from previous prime (823903) and next prime (823913).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (823903) by changing a digit.

823908 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, 34318 + ... + 34341.

2⁸²³⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

823908 is an abundant number, since it is smaller than the sum of its proper divisors (1098572).

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

823908 is a wasteful number, since it uses less digits than its factorization.

823908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68666 (or 68664 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 823908 is about 907.6937809636. The cubic root of 823908 is about 93.7474737097.

The spelling of 823908 in words is "eight hundred twenty-three thousand, nine hundred eight".