730612 has 6 divisors (see below), whose sum is σ = 1278578. Its totient is φ = 365304.

The previous prime is 730603. The next prime is 730619. The reversal of 730612 is 216037.

It can be written as a sum of positive squares in only one way, i.e., 729316 + 1296 = 854^2 + 36^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 730612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730619) by changing a digit.

730612 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 91323 + ... + 91330.

2⁷³⁰⁶¹² is an apocalyptic number.

It is an amenable number.

730612 is a deficient number, since it is larger than the sum of its proper divisors (547966).

730612 is a wasteful number, since it uses less digits than its factorization.

730612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182657 (or 182655 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 730612 is about 854.7584454102. The cubic root of 730612 is about 90.0662886123.

Adding to 730612 its reverse (216037), we get a palindrome (946649).

The spelling of 730612 in words is "seven hundred thirty thousand, six hundred twelve".