823460 has 48 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 282240.

The previous prime is 823457. The next prime is 823481. The reversal of 823460 is 64328.

823460 = T₃₉ + T₄₀ + ... + T₁₇₀.

It is a happy number.

It is a nialpdrome in base 7.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4082 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁸²³⁴⁶⁰ 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 823460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997920).

823460 is an abundant number, since it is smaller than the sum of its proper divisors (1172380).

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

823460 is a wasteful number, since it uses less digits than its factorization.

823460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 823460 is about 907.4469681475. The cubic root of 823460 is about 93.7304788985.

Adding to 823460 its reverse (64328), we get a palindrome (887788).

The spelling of 823460 in words is "eight hundred twenty-three thousand, four hundred sixty".