873539 has 2 divisors, whose sum is σ = 873540. Its totient is φ = 873538.

The previous prime is 873529. The next prime is 873541. The reversal of 873539 is 935378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 873539 - 2¹² = 869443 is a prime.

It is a Sophie Germain prime.

Together with 873541, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 873499 and 873508.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 873539.

It is not a weakly prime, because it can be changed into another prime (873529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436769 + 436770.

It is an arithmetic number, because the mean of its divisors is an integer number (436770).

2⁸⁷³⁵³⁹ is an apocalyptic number.

873539 is a deficient number, since it is larger than the sum of its proper divisors (1).

873539 is an equidigital number, since it uses as much as digits as its factorization.

873539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 873539 is about 934.6330830866. The cubic root of 873539 is about 95.5932953404.

The spelling of 873539 in words is "eight hundred seventy-three thousand, five hundred thirty-nine".