528469439 has 4 divisors (see below), whose sum is σ = 556283640. Its totient is φ = 500655240.

The previous prime is 528469433. The next prime is 528469499. The reversal of 528469439 is 934964825.

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

It is a cyclic number.

It is not a de Polignac number, because 528469439 - 2⁴ = 528469423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528469433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13907072 + ... + 13907109.

It is an arithmetic number, because the mean of its divisors is an integer number (139070910).

Almost surely, 2^528469439 is an apocalyptic number.

528469439 is a deficient number, since it is larger than the sum of its proper divisors (27814201).

528469439 is a wasteful number, since it uses less digits than its factorization.

528469439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27814200.

The product of its digits is 1866240, while the sum is 50.

The square root of 528469439 is about 22988.4631717738. The cubic root of 528469439 is about 808.4874679776.

The spelling of 528469439 in words is "five hundred twenty-eight million, four hundred sixty-nine thousand, four hundred thirty-nine".