985417709 has 8 divisors (see below), whose sum is σ = 1034614560. Its totient is φ = 937235376.

The previous prime is 985417673. The next prime is 985417721. The reversal of 985417709 is 907714589.

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

It is a cyclic number.

It is not a de Polignac number, because 985417709 - 2⁸ = 985417453 is a prime.

It is a super-2 number, since 2×985417709² = 1942096122421617362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985417759) 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 in 7 ways as a sum of consecutive naturals, for example, 251639 + ... + 255524.

It is an arithmetic number, because the mean of its divisors is an integer number (129326820).

Almost surely, 2^985417709 is an apocalyptic number.

It is an amenable number.

985417709 is a deficient number, since it is larger than the sum of its proper divisors (49196851).

985417709 is a wasteful number, since it uses less digits than its factorization.

985417709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507259.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 985417709 is about 31391.3636052976. The cubic root of 985417709 is about 995.1154160200.

The spelling of 985417709 in words is "nine hundred eighty-five million, four hundred seventeen thousand, seven hundred nine".