528065399 has 8 divisors (see below), whose sum is σ = 537487440. Its totient is φ = 518659200.

The previous prime is 528065389. The next prime is 528065449. The reversal of 528065399 is 993560825.

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

It is a cyclic number.

It is not a de Polignac number, because 528065399 - 2⁴ = 528065383 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 (528065389) 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, 78239 + ... + 84719.

It is an arithmetic number, because the mean of its divisors is an integer number (67185930).

Almost surely, 2^528065399 is an apocalyptic number.

528065399 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

528065399 is a deficient number, since it is larger than the sum of its proper divisors (9422041).

528065399 is a wasteful number, since it uses less digits than its factorization.

528065399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921.

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 528065399 is about 22979.6736051668. The cubic root of 528065399 is about 808.2813730821.

The spelling of 528065399 in words is "five hundred twenty-eight million, sixty-five thousand, three hundred ninety-nine".