823470 has 16 divisors (see below), whose sum is σ = 1976400. Its totient is φ = 219584.

The previous prime is 823457. The next prime is 823481. The reversal of 823470 is 74328.

It is a self number, because there is not a number n which added to its sum of digits gives 823470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13695 + ... + 13754.

It is an arithmetic number, because the mean of its divisors is an integer number (123525).

2⁸²³⁴⁷⁰ is an apocalyptic number.

823470 is an abundant number, since it is smaller than the sum of its proper divisors (1152930).

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

823470 is a wasteful number, since it uses less digits than its factorization.

823470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27459.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 823470 is about 907.4524780946. The cubic root of 823470 is about 93.7308583142.

Adding to 823470 its reverse (74328), we get a palindrome (897798).

The spelling of 823470 in words is "eight hundred twenty-three thousand, four hundred seventy".