823379 has 4 divisors (see below), whose sum is σ = 825384. Its totient is φ = 821376.

The previous prime is 823373. The next prime is 823399. The reversal of 823379 is 973328.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-823379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823373) 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, 137 + ... + 1290.

It is an arithmetic number, because the mean of its divisors is an integer number (206346).

2⁸²³³⁷⁹ is an apocalyptic number.

823379 is a deficient number, since it is larger than the sum of its proper divisors (2005).

823379 is a wasteful number, since it uses less digits than its factorization.

823379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004.

The product of its digits is 9072, while the sum is 32.

The square root of 823379 is about 907.4023363426. The cubic root of 823379 is about 93.7274055180.

The spelling of 823379 in words is "eight hundred twenty-three thousand, three hundred seventy-nine".