616411 has 2 divisors, whose sum is σ = 616412. Its totient is φ = 616410.

The previous prime is 616409. The next prime is 616433. The reversal of 616411 is 114616.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616411 - 2¹ = 616409 is a prime.

Together with 616409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (616481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308205 + 308206.

It is an arithmetic number, because the mean of its divisors is an integer number (308206).

2⁶¹⁶⁴¹¹ is an apocalyptic number.

616411 is a deficient number, since it is larger than the sum of its proper divisors (1).

616411 is an equidigital number, since it uses as much as digits as its factorization.

616411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 616411 is about 785.1184623991. The cubic root of 616411 is about 85.1053365354.

The spelling of 616411 in words is "six hundred sixteen thousand, four hundred eleven".