616897 has 2 divisors, whose sum is σ = 616898. Its totient is φ = 616896.

The previous prime is 616877. The next prime is 616909. The reversal of 616897 is 798616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370881 + 246016 = 609^2 + 496^2 .

It is a cyclic number.

It is not a de Polignac number, because 616897 - 2⁷ = 616769 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (616877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308448 + 308449.

It is an arithmetic number, because the mean of its divisors is an integer number (308449).

2⁶¹⁶⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

616897 is a deficient number, since it is larger than the sum of its proper divisors (1).

616897 is an equidigital number, since it uses as much as digits as its factorization.

616897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 616897 is about 785.4279088497. The cubic root of 616897 is about 85.1276973348.

The spelling of 616897 in words is "six hundred sixteen thousand, eight hundred ninety-seven".