730539 has 20 divisors (see below), whose sum is σ = 1132560. Its totient is φ = 468720.

The previous prime is 730537. The next prime is 730553. The reversal of 730539 is 935037.

It is not a de Polignac number, because 730539 - 2¹ = 730537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (730537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2194 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (56628).

2⁷³⁰⁵³⁹ is an apocalyptic number.

730539 is a deficient number, since it is larger than the sum of its proper divisors (402021).

730539 is a wasteful number, since it uses less digits than its factorization.

730539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 27.

The square root of 730539 is about 854.7157422208. The cubic root of 730539 is about 90.0632888176.

The spelling of 730539 in words is "seven hundred thirty thousand, five hundred thirty-nine".