612616 has 16 divisors (see below), whose sum is σ = 1165500. Its totient is φ = 301824.

The previous prime is 612613. The next prime is 612637. The reversal of 612616 is 616216.

It can be written as a sum of positive squares in 2 ways, for example, as 568516 + 44100 = 754^2 + 210^2 .

It is not an unprimeable number, because it can be changed into a prime (612611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60 + ... + 1108.

2⁶¹²⁶¹⁶ is an apocalyptic number.

It is an amenable number.

612616 is a deficient number, since it is larger than the sum of its proper divisors (552884).

612616 is a wasteful number, since it uses less digits than its factorization.

612616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 1124 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 612616 is about 782.6978982979. The cubic root of 612616 is about 84.9303235230.

Subtracting 612616 from its reverse (616216), we obtain a square (3600 = 60²).

The spelling of 612616 in words is "six hundred twelve thousand, six hundred sixteen".