729375 has 20 divisors (see below), whose sum is σ = 1218360. Its totient is φ = 388000.

The previous prime is 729373. The next prime is 729389. The reversal of 729375 is 573927.

729375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 729375 - 2¹ = 729373 is a prime.

It is a d-powerful number, because it can be written as 7³ + 2⁹ + 3¹¹ + 9⁶ + 7⁵ + 5⁵ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 729375.

It is not an unprimeable number, because it can be changed into a prime (729371) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1681 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (60918).

2⁷²⁹³⁷⁵ is an apocalyptic number.

729375 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

729375 is a deficient number, since it is larger than the sum of its proper divisors (488985).

729375 is an equidigital number, since it uses as much as digits as its factorization.

729375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 397 counting only the distinct ones).

The product of its digits is 13230, while the sum is 33.

The square root of 729375 is about 854.0345426269. The cubic root of 729375 is about 90.0154294534.

The spelling of 729375 in words is "seven hundred twenty-nine thousand, three hundred seventy-five".