528862985 has 16 divisors (see below), whose sum is σ = 737190912. Its totient is φ = 356702400.

The previous prime is 528862963. The next prime is 528862993. The reversal of 528862985 is 589268825.

It is a happy number.

It is not a de Polignac number, because 528862985 - 2⁸ = 528862729 is a prime.

It is a super-2 number, since 2×528862985² = 559392113806220450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121721 + ... + 125990.

It is an arithmetic number, because the mean of its divisors is an integer number (46074432).

Almost surely, 2^528862985 is an apocalyptic number.

It is an amenable number.

528862985 is a deficient number, since it is larger than the sum of its proper divisors (208327927).

528862985 is a wasteful number, since it uses less digits than its factorization.

528862985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247784.

The product of its digits is 2764800, while the sum is 53.

The square root of 528862985 is about 22997.0212201494. The cubic root of 528862985 is about 808.6881090725.

The spelling of 528862985 in words is "five hundred twenty-eight million, eight hundred sixty-two thousand, nine hundred eighty-five".