985317408 has 36 divisors (see below), whose sum is σ = 2801997198. Its totient is φ = 328439040.

The previous prime is 985317407. The next prime is 985317419. The reversal of 985317408 is 804713589.

It can be written as a sum of positive squares in only one way, i.e., 702674064 + 282643344 = 26508^2 + 16812^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (985317407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1710333 + ... + 1710908.

Almost surely, 2^985317408 is an apocalyptic number.

It is an amenable number.

985317408 is an abundant number, since it is smaller than the sum of its proper divisors (1816679790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

985317408 is a wasteful number, since it uses less digits than its factorization.

985317408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421257 (or 3421246 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 985317408 is about 31389.7659755532. The cubic root of 985317408 is about 995.0816521799.

It can be divided in two parts, 9853 and 17408, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 985317408 in words is "nine hundred eighty-five million, three hundred seventeen thousand, four hundred eight".