823461 has 8 divisors (see below), whose sum is σ = 1118880. Its totient is φ = 538512.

The previous prime is 823457. The next prime is 823481. The reversal of 823461 is 164328.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 823461 - 2² = 823457 is a prime.

It is a Curzon number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431 + ... + 2748.

It is an arithmetic number, because the mean of its divisors is an integer number (139860).

823461 is a Friedman number, since it can be written as (6+1)^(4+3)-82, using all its digits and the basic arithmetic operations.

2⁸²³⁴⁶¹ is an apocalyptic number.

It is an amenable number.

823461 is a deficient number, since it is larger than the sum of its proper divisors (295419).

823461 is a wasteful number, since it uses less digits than its factorization.

823461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235.

The product of its digits is 1152, while the sum is 24.

The square root of 823461 is about 907.4475191437. The cubic root of 823461 is about 93.7305168402.

Adding to 823461 its reverse (164328), we get a palindrome (987789).

The spelling of 823461 in words is "eight hundred twenty-three thousand, four hundred sixty-one".