616361 has 2 divisors, whose sum is σ = 616362. Its totient is φ = 616360.

The previous prime is 616327. The next prime is 616367. The reversal of 616361 is 163616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 609961 + 6400 = 781^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 616361 - 2¹⁰ = 615337 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 616361.

It is not a weakly prime, because it can be changed into another prime (616367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308180 + 308181.

It is an arithmetic number, because the mean of its divisors is an integer number (308181).

2⁶¹⁶³⁶¹ is an apocalyptic number.

It is an amenable number.

616361 is a deficient number, since it is larger than the sum of its proper divisors (1).

616361 is an equidigital number, since it uses as much as digits as its factorization.

616361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 616361 is about 785.0866194249. The cubic root of 616361 is about 85.1030353750.

Adding to 616361 its reverse (163616), we get a palindrome (779977).

The spelling of 616361 in words is "six hundred sixteen thousand, three hundred sixty-one".