730549 has 6 divisors (see below), whose sum is σ = 764246. Its totient is φ = 698280.

The previous prime is 730537. The next prime is 730553. The reversal of 730549 is 945037.

It can be written as a sum of positive squares in only one way, i.e., 611524 + 119025 = 782^2 + 345^2 .

It is not a de Polignac number, because 730549 - 2⁷ = 730421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162 + ... + 1219.

2⁷³⁰⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

730549 is a deficient number, since it is larger than the sum of its proper divisors (33697).

730549 is a wasteful number, since it uses less digits than its factorization.

730549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427 (or 1404 counting only the distinct ones).

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

The square root of 730549 is about 854.7215920989. The cubic root of 730549 is about 90.0636997602.

The spelling of 730549 in words is "seven hundred thirty thousand, five hundred forty-nine".