616312 has 16 divisors (see below), whose sum is σ = 1184400. Its totient is φ = 300480.

The previous prime is 616307. The next prime is 616313. The reversal of 616312 is 213616.

It is a self number, because there is not a number n which added to its sum of digits gives 616312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616313) by changing a digit.

616312 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 in 3 ways as a sum of consecutive naturals, for example, 612 + ... + 1267.

It is an arithmetic number, because the mean of its divisors is an integer number (74025).

2⁶¹⁶³¹² is an apocalyptic number.

It is an amenable number.

616312 is a deficient number, since it is larger than the sum of its proper divisors (568088).

616312 is a wasteful number, since it uses less digits than its factorization.

616312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926 (or 1922 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 616312 is about 785.0554120570. The cubic root of 616312 is about 85.1007801170.

Adding to 616312 its reverse (213616), we get a palindrome (829928).

The spelling of 616312 in words is "six hundred sixteen thousand, three hundred twelve".