985487423 has 2 divisors, whose sum is σ = 985487424. Its totient is φ = 985487422.

The previous prime is 985487411. The next prime is 985487429. The reversal of 985487423 is 324784589.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985487423 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985487429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492743711 + 492743712.

It is an arithmetic number, because the mean of its divisors is an integer number (492743712).

Almost surely, 2^985487423 is an apocalyptic number.

985487423 is a deficient number, since it is larger than the sum of its proper divisors (1).

985487423 is an equidigital number, since it uses as much as digits as its factorization.

985487423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 50.

The square root of 985487423 is about 31392.4739866102. The cubic root of 985487423 is about 995.1388821568.

The spelling of 985487423 in words is "nine hundred eighty-five million, four hundred eighty-seven thousand, four hundred twenty-three".