528735723 has 8 divisors (see below), whose sum is σ = 706100736. Its totient is φ = 351930600.

The previous prime is 528735709. The next prime is 528735731. The reversal of 528735723 is 327537825.

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

It is not a de Polignac number, because 528735723 - 2¹⁴ = 528719339 is a prime.

It is a super-2 number, since 2×528735723² = 559122929552665458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (528735223) 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, 137763 + ... + 141548.

It is an arithmetic number, because the mean of its divisors is an integer number (88262592).

Almost surely, 2^528735723 is an apocalyptic number.

528735723 is a deficient number, since it is larger than the sum of its proper divisors (177365013).

528735723 is a wasteful number, since it uses less digits than its factorization.

528735723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279945.

The product of its digits is 352800, while the sum is 42.

The square root of 528735723 is about 22994.2541301082. The cubic root of 528735723 is about 808.6232381292.

The spelling of 528735723 in words is "five hundred twenty-eight million, seven hundred thirty-five thousand, seven hundred twenty-three".