730291 has 4 divisors (see below), whose sum is σ = 734832. Its totient is φ = 725752.

The previous prime is 730283. The next prime is 730297. The reversal of 730291 is 192037.

730291 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.

It is a cyclic number.

It is not a de Polignac number, because 730291 - 2³ = 730283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730297) 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, 2020 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (183708).

2⁷³⁰²⁹¹ is an apocalyptic number.

730291 is a deficient number, since it is larger than the sum of its proper divisors (4541).

730291 is a wasteful number, since it uses less digits than its factorization.

730291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 730291 is about 854.5706524331. The cubic root of 730291 is about 90.0530962413.

The spelling of 730291 in words is "seven hundred thirty thousand, two hundred ninety-one".