616409033 has 2 divisors, whose sum is σ = 616409034. Its totient is φ = 616409032.

The previous prime is 616408987. The next prime is 616409041. The reversal of 616409033 is 330904616.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614891209 + 1517824 = 24797^2 + 1232^2 .

It is a cyclic number.

It is not a de Polignac number, because 616409033 - 2¹⁴ = 616392649 is a prime.

It is not a weakly prime, because it can be changed into another prime (616409083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308204516 + 308204517.

It is an arithmetic number, because the mean of its divisors is an integer number (308204517).

Almost surely, 2^616409033 is an apocalyptic number.

It is an amenable number.

616409033 is a deficient number, since it is larger than the sum of its proper divisors (1).

616409033 is an equidigital number, since it uses as much as digits as its factorization.

616409033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 616409033 is about 24827.5861291427. The cubic root of 616409033 is about 851.0524601015.

The spelling of 616409033 in words is "six hundred sixteen million, four hundred nine thousand, thirty-three".