730541 has 12 divisors (see below), whose sum is σ = 900828. Its totient is φ = 588672.

The previous prime is 730537. The next prime is 730553. The reversal of 730541 is 145037.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 592900 + 137641 = 770^2 + 371^2 .

It is not a de Polignac number, because 730541 - 2² = 730537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730541.

It is not an unprimeable number, because it can be changed into a prime (730571) 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 11 ways as a sum of consecutive naturals, for example, 395 + ... + 1271.

It is an arithmetic number, because the mean of its divisors is an integer number (75069).

2⁷³⁰⁵⁴¹ is an apocalyptic number.

It is an amenable number.

730541 is a deficient number, since it is larger than the sum of its proper divisors (170287).

730541 is a wasteful number, since it uses less digits than its factorization.

730541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 730541 is about 854.7169121996. The cubic root of 730541 is about 90.0633710064.

Adding to 730541 its reverse (145037), we get a palindrome (875578).

The spelling of 730541 in words is "seven hundred thirty thousand, five hundred forty-one".