729528 has 32 divisors (see below), whose sum is σ = 1846800. Its totient is φ = 240128.

The previous prime is 729527. The next prime is 729551. The reversal of 729528 is 825927.

It is a super-2 number, since 2×729528² = 1064422205568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729527) 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, 2578 + ... + 2846.

2⁷²⁹⁵²⁸ is an apocalyptic number.

It is an amenable number.

729528 is an abundant number, since it is smaller than the sum of its proper divisors (1117272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729528 is a wasteful number, since it uses less digits than its factorization.

729528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 387 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 729528 is about 854.1241127611. The cubic root of 729528 is about 90.0217231514.

The spelling of 729528 in words is "seven hundred twenty-nine thousand, five hundred twenty-eight".