985723 has 2 divisors, whose sum is σ = 985724. Its totient is φ = 985722.

The previous prime is 985709. The next prime is 985729. The reversal of 985723 is 327589.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985723 is a prime.

It is a super-3 number, since 3×985723³ = 2873332764201384201, which contains 333 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (985729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492861 + 492862.

It is an arithmetic number, because the mean of its divisors is an integer number (492862).

2⁹⁸⁵⁷²³ is an apocalyptic number.

985723 is a deficient number, since it is larger than the sum of its proper divisors (1).

985723 is an equidigital number, since it uses as much as digits as its factorization.

985723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 985723 is about 992.8358373870. The cubic root of 985723 is about 99.5218170554.

The spelling of 985723 in words is "nine hundred eighty-five thousand, seven hundred twenty-three".