528690227 has 16 divisors (see below), whose sum is σ = 574801920. Its totient is φ = 483383712.

The previous prime is 528690223. The next prime is 528690247. The reversal of 528690227 is 722096825.

It is a cyclic number.

It is not a de Polignac number, because 528690227 - 2² = 528690223 is a prime.

It is a super-2 number, since 2×528690227² = 559026712250623058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528690223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816818 + ... + 817464.

It is an arithmetic number, because the mean of its divisors is an integer number (35925120).

Almost surely, 2^528690227 is an apocalyptic number.

528690227 is a deficient number, since it is larger than the sum of its proper divisors (46111693).

528690227 is a wasteful number, since it uses less digits than its factorization.

528690227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 528690227 is about 22993.2648182027. The cubic root of 528690227 is about 808.6000443252.

The spelling of 528690227 in words is "five hundred twenty-eight million, six hundred ninety thousand, two hundred twenty-seven".