616703317 has 2 divisors, whose sum is σ = 616703318. Its totient is φ = 616703316.

The previous prime is 616703303. The next prime is 616703369. The reversal of 616703317 is 713307616.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 453221521 + 163481796 = 21289^2 + 12786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616703317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616703617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308351658 + 308351659.

It is an arithmetic number, because the mean of its divisors is an integer number (308351659).

Almost surely, 2^616703317 is an apocalyptic number.

It is an amenable number.

616703317 is a deficient number, since it is larger than the sum of its proper divisors (1).

616703317 is an equidigital number, since it uses as much as digits as its factorization.

616703317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 616703317 is about 24833.5119747490. The cubic root of 616703317 is about 851.1878741219.

The spelling of 616703317 in words is "six hundred sixteen million, seven hundred three thousand, three hundred seventeen".