616289 has 2 divisors, whose sum is σ = 616290. Its totient is φ = 616288.

The previous prime is 616277. The next prime is 616307. The reversal of 616289 is 982616.

616289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616225 + 64 = 785^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 616289 - 2¹² = 612193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (616219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308144 + 308145.

It is an arithmetic number, because the mean of its divisors is an integer number (308145).

2⁶¹⁶²⁸⁹ is an apocalyptic number.

It is an amenable number.

616289 is a deficient number, since it is larger than the sum of its proper divisors (1).

616289 is an equidigital number, since it uses as much as digits as its factorization.

616289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 616289 is about 785.0407632728. The cubic root of 616289 is about 85.0997214853.

The spelling of 616289 in words is "six hundred sixteen thousand, two hundred eighty-nine".