528886985 has 8 divisors (see below), whose sum is σ = 692361216. Its totient is φ = 384645040.

The previous prime is 528886931. The next prime is 528886987. The reversal of 528886985 is 589688825.

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

It is not a de Polignac number, because 528886985 - 2²⁴ = 512109769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528886987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4808009 + ... + 4808118.

It is an arithmetic number, because the mean of its divisors is an integer number (86545152).

Almost surely, 2^528886985 is an apocalyptic number.

528886985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

528886985 is a deficient number, since it is larger than the sum of its proper divisors (163474231).

528886985 is a wasteful number, since it uses less digits than its factorization.

528886985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9616143.

The product of its digits is 11059200, while the sum is 59.

The square root of 528886985 is about 22997.5430209403. The cubic root of 528886985 is about 808.7003417437.

The spelling of 528886985 in words is "five hundred twenty-eight million, eight hundred eighty-six thousand, nine hundred eighty-five".