823534037 has 2 divisors, whose sum is σ = 823534038. Its totient is φ = 823534036.

The previous prime is 823534001. The next prime is 823534039. The reversal of 823534037 is 730435328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 680635921 + 142898116 = 26089^2 + 11954^2 .

It is a cyclic number.

It is not a de Polignac number, because 823534037 - 2⁶ = 823533973 is a prime.

Together with 823534039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 823533988 and 823534006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823534039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411767018 + 411767019.

It is an arithmetic number, because the mean of its divisors is an integer number (411767019).

Almost surely, 2^823534037 is an apocalyptic number.

It is an amenable number.

823534037 is a deficient number, since it is larger than the sum of its proper divisors (1).

823534037 is an equidigital number, since it uses as much as digits as its factorization.

823534037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 823534037 is about 28697.2827459326. The cubic root of 823534037 is about 937.3328790578.

The spelling of 823534037 in words is "eight hundred twenty-three million, five hundred thirty-four thousand, thirty-seven".