616841 has 2 divisors, whose sum is σ = 616842. Its totient is φ = 616840.

The previous prime is 616829. The next prime is 616843. The reversal of 616841 is 148616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606841 + 10000 = 779^2 + 100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616841 is a prime.

It is a super-3 number, since 3×616841³ = 704110713414333963, which contains 333 as substring.

Together with 616843, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616841.

It is not a weakly prime, because it can be changed into another prime (616843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308420 + 308421.

It is an arithmetic number, because the mean of its divisors is an integer number (308421).

2⁶¹⁶⁸⁴¹ is an apocalyptic number.

It is an amenable number.

616841 is a deficient number, since it is larger than the sum of its proper divisors (1).

616841 is an equidigital number, since it uses as much as digits as its factorization.

616841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 616841 is about 785.3922586835. The cubic root of 616841 is about 85.1251213806.

The spelling of 616841 in words is "six hundred sixteen thousand, eight hundred forty-one".