528728001 has 4 divisors (see below), whose sum is σ = 704970672. Its totient is φ = 352485332.

The previous prime is 528727973. The next prime is 528728003. The reversal of 528728001 is 100827825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 528728001 - 2⁶ = 528727937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (528728003) 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, 88121331 + ... + 88121336.

It is an arithmetic number, because the mean of its divisors is an integer number (176242668).

Almost surely, 2^528728001 is an apocalyptic number.

It is an amenable number.

528728001 is a deficient number, since it is larger than the sum of its proper divisors (176242671).

528728001 is a wasteful number, since it uses less digits than its factorization.

528728001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176242670.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 528728001 is about 22994.0862179822. The cubic root of 528728001 is about 808.6193015570.

The spelling of 528728001 in words is "five hundred twenty-eight million, seven hundred twenty-eight thousand, one".