612730612 has 24 divisors (see below), whose sum is σ = 1161159272. Its totient is φ = 281232000.

The previous prime is 612730597. The next prime is 612730631. The reversal of 612730612 is 216037216.

It can be written as a sum of positive squares in 4 ways, for example, as 1454436 + 611276176 = 1206^2 + 24724^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23139 + ... + 41962.

Almost surely, 2^612730612 is an apocalyptic number.

It is an amenable number.

612730612 is a deficient number, since it is larger than the sum of its proper divisors (548428660).

612730612 is a wasteful number, since it uses less digits than its factorization.

612730612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65299 (or 65297 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 612730612 is about 24753.3959690383. The cubic root of 612730612 is about 849.3561962327.

Adding to 612730612 its reverse (216037216), we get a palindrome (828767828).

The spelling of 612730612 in words is "six hundred twelve million, seven hundred thirty thousand, six hundred twelve".