730508 has 6 divisors (see below), whose sum is σ = 1278396. Its totient is φ = 365252.

The previous prime is 730487. The next prime is 730537. The reversal of 730508 is 805037.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91310 + ... + 91317.

It is an arithmetic number, because the mean of its divisors is an integer number (213066).

2⁷³⁰⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

730508 is a deficient number, since it is larger than the sum of its proper divisors (547888).

730508 is a wasteful number, since it uses less digits than its factorization.

730508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182631 (or 182629 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 730508 is about 854.6976073443. The cubic root of 730508 is about 90.0620148718.

Subtracting 730508 from its reverse (805037), we obtain a square (74529 = 273²).

The spelling of 730508 in words is "seven hundred thirty thousand, five hundred eight".