730517 has 4 divisors (see below), whose sum is σ = 733056. Its totient is φ = 727980.

The previous prime is 730487. The next prime is 730537. The reversal of 730517 is 715037.

It is a happy number.

730517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 715037 = 17 ⋅42061.

It is a cyclic number.

It is not a de Polignac number, because 730517 - 2¹⁰ = 729493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730492 and 730501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730537) 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, 773 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (183264).

2⁷³⁰⁵¹⁷ is an apocalyptic number.

It is an amenable number.

730517 is a deficient number, since it is larger than the sum of its proper divisors (2539).

730517 is a wasteful number, since it uses less digits than its factorization.

730517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 730517 is about 854.7028723480. The cubic root of 730517 is about 90.0623847307.

The spelling of 730517 in words is "seven hundred thirty thousand, five hundred seventeen".