985827539 has 2 divisors, whose sum is σ = 985827540. Its totient is φ = 985827538.

The previous prime is 985827511. The next prime is 985827581. The reversal of 985827539 is 935728589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985827539 - 2²⁴ = 969050323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (985827599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492913769 + 492913770.

It is an arithmetic number, because the mean of its divisors is an integer number (492913770).

Almost surely, 2^985827539 is an apocalyptic number.

985827539 is a deficient number, since it is larger than the sum of its proper divisors (1).

985827539 is an equidigital number, since it uses as much as digits as its factorization.

985827539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 56.

The square root of 985827539 is about 31397.8906775599. The cubic root of 985827539 is about 995.2533513079.

The spelling of 985827539 in words is "nine hundred eighty-five million, eight hundred twenty-seven thousand, five hundred thirty-nine".