822481 has 4 divisors (see below), whose sum is σ = 897264. Its totient is φ = 747700.

The previous prime is 822433. The next prime is 822517. The reversal of 822481 is 184228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 822481 - 2¹⁵ = 789713 is a prime.

It is a super-2 number, since 2×822481² = 1352949990722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

822481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (822431) 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, 37375 + ... + 37396.

It is an arithmetic number, because the mean of its divisors is an integer number (224316).

2⁸²²⁴⁸¹ is an apocalyptic number.

It is an amenable number.

822481 is a deficient number, since it is larger than the sum of its proper divisors (74783).

822481 is a wasteful number, since it uses less digits than its factorization.

822481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74782.

The product of its digits is 1024, while the sum is 25.

The square root of 822481 is about 906.9073822613. The cubic root of 822481 is about 93.6933192195.

The spelling of 822481 in words is "eight hundred twenty-two thousand, four hundred eighty-one".