612323712 has 640 divisors, whose sum is σ = 2488147200. Its totient is φ = 144322560.

The previous prime is 612323651. The next prime is 612323729. The reversal of 612323712 is 217323216.

612323712 is a `hidden beast` number, since 61 + 232 + 371 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

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 79 ways as a sum of consecutive naturals, for example, 10378339 + ... + 10378397.

It is an arithmetic number, because the mean of its divisors is an integer number (3887730).

Almost surely, 2^612323712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612323712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244073600).

612323712 is an abundant number, since it is smaller than the sum of its proper divisors (1875823488).

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

612323712 is a wasteful number, since it uses less digits than its factorization.

612323712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 95 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 612323712 is about 24745.1755297876. The cubic root of 612323712 is about 849.1681421026.

Adding to 612323712 its reverse (217323216), we get a palindrome (829646928).

The spelling of 612323712 in words is "six hundred twelve million, three hundred twenty-three thousand, seven hundred twelve".