616285 has 12 divisors (see below), whose sum is σ = 776412. Its totient is φ = 469568.

The previous prime is 616277. The next prime is 616289. The reversal of 616285 is 582616.

616285 = T₄₉₄ + T₄₉₅ + ... + T₄₉₈.

It can be written as a sum of positive squares in 2 ways, for example, as 171396 + 444889 = 414^2 + 667^2 .

It is not a de Polignac number, because 616285 - 2³ = 616277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2529 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (64701).

2⁶¹⁶²⁸⁵ is an apocalyptic number.

It is an amenable number.

616285 is a deficient number, since it is larger than the sum of its proper divisors (160127).

616285 is a wasteful number, since it uses less digits than its factorization.

616285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 261 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 616285 is about 785.0382156303. The cubic root of 616285 is about 85.0995373727.

The spelling of 616285 in words is "six hundred sixteen thousand, two hundred eighty-five".