823448531 has 2 divisors, whose sum is σ = 823448532. Its totient is φ = 823448530.

The previous prime is 823448473. The next prime is 823448537. The reversal of 823448531 is 135844328.

It is a happy number.

823448531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 823448531 - 2¹⁸ = 823186387 is a prime.

It is a super-2 number, since 2×823448531² = 1356134966412115922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (823448537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411724265 + 411724266.

It is an arithmetic number, because the mean of its divisors is an integer number (411724266).

Almost surely, 2^823448531 is an apocalyptic number.

823448531 is a deficient number, since it is larger than the sum of its proper divisors (1).

823448531 is an equidigital number, since it uses as much as digits as its factorization.

823448531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 38.

The square root of 823448531 is about 28695.7929146417. The cubic root of 823448531 is about 937.3004374280.

It can be divided in two parts, 8234 and 48531, that added together give a palindrome (56765).

The spelling of 823448531 in words is "eight hundred twenty-three million, four hundred forty-eight thousand, five hundred thirty-one".