730057 has 4 divisors (see below), whose sum is σ = 732160. Its totient is φ = 727956.

The previous prime is 730049. The next prime is 730069. The reversal of 730057 is 750037.

730057 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.

It is a cyclic number.

It is not a de Polignac number, because 730057 - 2³ = 730049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730157) 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, 393 + ... + 1270.

It is an arithmetic number, because the mean of its divisors is an integer number (183040).

2⁷³⁰⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

730057 is a deficient number, since it is larger than the sum of its proper divisors (2103).

730057 is a wasteful number, since it uses less digits than its factorization.

730057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 735, while the sum is 22.

The square root of 730057 is about 854.4337306076. The cubic root of 730057 is about 90.0434769363.

The spelling of 730057 in words is "seven hundred thirty thousand, fifty-seven".