730945 has 12 divisors (see below), whose sum is σ = 920340. Its totient is φ = 556640.

The previous prime is 730943. The next prime is 730969. The reversal of 730945 is 549037.

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 408321 = 568^2 + 639^2 .

It is not a de Polignac number, because 730945 - 2¹ = 730943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10260 + ... + 10330.

It is an arithmetic number, because the mean of its divisors is an integer number (76695).

2⁷³⁰⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

730945 is a deficient number, since it is larger than the sum of its proper divisors (189395).

730945 is an equidigital number, since it uses as much as digits as its factorization.

730945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 730945 is about 854.9532150943. The cubic root of 730945 is about 90.0799700733.

The spelling of 730945 in words is "seven hundred thirty thousand, nine hundred forty-five".