787983617 has 2 divisors, whose sum is σ = 787983618. Its totient is φ = 787983616.

The previous prime is 787983607. The next prime is 787983619. The reversal of 787983617 is 716389787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594189376 + 193794241 = 24376^2 + 13921^2 .

787983617 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 787983617 - 2⁴ = 787983601 is a prime.

Together with 787983619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (787983619) 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, 393991808 + 393991809.

It is an arithmetic number, because the mean of its divisors is an integer number (393991809).

Almost surely, 2^787983617 is an apocalyptic number.

It is an amenable number.

787983617 is a deficient number, since it is larger than the sum of its proper divisors (1).

787983617 is an equidigital number, since it uses as much as digits as its factorization.

787983617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3556224, while the sum is 56.

The square root of 787983617 is about 28071.0458836147. The cubic root of 787983617 is about 923.6463734441.

The spelling of 787983617 in words is "seven hundred eighty-seven million, nine hundred eighty-three thousand, six hundred seventeen".