788406317 has 2 divisors, whose sum is σ = 788406318. Its totient is φ = 788406316.

The previous prime is 788406313. The next prime is 788406329. The reversal of 788406317 is 713604887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763195876 + 25210441 = 27626^2 + 5021^2 .

It is an emirp because it is prime and its reverse (713604887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 788406317 - 2² = 788406313 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (788406313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394203158 + 394203159.

It is an arithmetic number, because the mean of its divisors is an integer number (394203159).

Almost surely, 2^788406317 is an apocalyptic number.

It is an amenable number.

788406317 is a deficient number, since it is larger than the sum of its proper divisors (1).

788406317 is an equidigital number, since it uses as much as digits as its factorization.

788406317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 788406317 is about 28078.5739844459. The cubic root of 788406317 is about 923.8115018901.

The spelling of 788406317 in words is "seven hundred eighty-eight million, four hundred six thousand, three hundred seventeen".