730147 has 4 divisors (see below), whose sum is σ = 796536. Its totient is φ = 663760.

The previous prime is 730139. The next prime is 730157. The reversal of 730147 is 741037.

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 730147 - 2³ = 730139 is a prime.

It is a super-2 number, since 2×730147² = 1066229283218, which contains 22 as substring.

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, 33178 + ... + 33199.

It is an arithmetic number, because the mean of its divisors is an integer number (199134).

2⁷³⁰¹⁴⁷ is an apocalyptic number.

730147 is a deficient number, since it is larger than the sum of its proper divisors (66389).

730147 is a wasteful number, since it uses less digits than its factorization.

730147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66388.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 730147 is about 854.4863954447. The cubic root of 730147 is about 90.0471769122.

The spelling of 730147 in words is "seven hundred thirty thousand, one hundred forty-seven".