985809995 has 8 divisors (see below), whose sum is σ = 1194685200. Its totient is φ = 780839200.

The previous prime is 985809989. The next prime is 985810073. The reversal of 985809995 is 599908589.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 985809995 - 2⁶ = 985809931 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 975545 + ... + 976554.

It is an arithmetic number, because the mean of its divisors is an integer number (149335650).

Almost surely, 2^985809995 is an apocalyptic number.

985809995 is a deficient number, since it is larger than the sum of its proper divisors (208875205).

985809995 is a wasteful number, since it uses less digits than its factorization.

985809995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952205.

The product of its (nonzero) digits is 10497600, while the sum is 62.

The square root of 985809995 is about 31397.6112944918. The cubic root of 985809995 is about 995.2474473583.

The spelling of 985809995 in words is "nine hundred eighty-five million, eight hundred nine thousand, nine hundred ninety-five".