730812 has 12 divisors (see below), whose sum is σ = 1705256. Its totient is φ = 243600.

The previous prime is 730811. The next prime is 730819. The reversal of 730812 is 218037.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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 730812.

It is not an unprimeable number, because it can be changed into a prime (730811) 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 3 ways as a sum of consecutive naturals, for example, 30439 + ... + 30462.

2⁷³⁰⁸¹² is an apocalyptic number.

It is an amenable number.

730812 is an abundant number, since it is smaller than the sum of its proper divisors (974444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

730812 is a wasteful number, since it uses less digits than its factorization.

730812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60908 (or 60906 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 730812 is about 854.8754295218. The cubic root of 730812 is about 90.0745062045.

Adding to 730812 its reverse (218037), we get a palindrome (948849).

The spelling of 730812 in words is "seven hundred thirty thousand, eight hundred twelve".