528749039 has 16 divisors (see below), whose sum is σ = 657222720. Its totient is φ = 414201600.

The previous prime is 528749033. The next prime is 528749063. The reversal of 528749039 is 930947825.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528749039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 528748984 and 528749002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528749033) 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, 19574 + ... + 37955.

It is an arithmetic number, because the mean of its divisors is an integer number (41076420).

Almost surely, 2^528749039 is an apocalyptic number.

528749039 is a deficient number, since it is larger than the sum of its proper divisors (128473681).

528749039 is a wasteful number, since it uses less digits than its factorization.

528749039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57650.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 528749039 is about 22994.5436788817. The cubic root of 528749039 is about 808.6300263576.

The spelling of 528749039 in words is "five hundred twenty-eight million, seven hundred forty-nine thousand, thirty-nine".