528694087 has 4 divisors (see below), whose sum is σ = 534634560. Its totient is φ = 522753616.

The previous prime is 528694081. The next prime is 528694093. The reversal of 528694087 is 780496825.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (528694081) and next prime (528694093).

It is a cyclic number.

It is not a de Polignac number, because 528694087 - 2¹¹ = 528692039 is a prime.

It is a super-3 number, since 3×528694087³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528694087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528694081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2970103 + ... + 2970280.

It is an arithmetic number, because the mean of its divisors is an integer number (133658640).

Almost surely, 2^528694087 is an apocalyptic number.

528694087 is a deficient number, since it is larger than the sum of its proper divisors (5940473).

528694087 is an equidigital number, since it uses as much as digits as its factorization.

528694087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940472.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 528694087 is about 22993.3487556728. The cubic root of 528694087 is about 808.6020122000.

The spelling of 528694087 in words is "five hundred twenty-eight million, six hundred ninety-four thousand, eighty-seven".