385787117 has 2 divisors, whose sum is σ = 385787118. Its totient is φ = 385787116.

The previous prime is 385787113. The next prime is 385787131. The reversal of 385787117 is 711787583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327935881 + 57851236 = 18109^2 + 7606^2 .

It is a cyclic number.

It is not a de Polignac number, because 385787117 - 2² = 385787113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385787111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192893558 + 192893559.

It is an arithmetic number, because the mean of its divisors is an integer number (192893559).

Almost surely, 2^385787117 is an apocalyptic number.

It is an amenable number.

385787117 is a deficient number, since it is larger than the sum of its proper divisors (1).

385787117 is an equidigital number, since it uses as much as digits as its factorization.

385787117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 329280, while the sum is 47.

The square root of 385787117 is about 19641.4642274959. The cubic root of 385787117 is about 727.9740643308.

The spelling of 385787117 in words is "three hundred eighty-five million, seven hundred eighty-seven thousand, one hundred seventeen".