385913873 has 2 divisors, whose sum is σ = 385913874. Its totient is φ = 385913872.

The previous prime is 385913861. The next prime is 385913881. The reversal of 385913873 is 378319583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301126609 + 84787264 = 17353^2 + 9208^2 .

It is a cyclic number.

It is not a de Polignac number, because 385913873 - 2⁶ = 385913809 is a prime.

It is not a weakly prime, because it can be changed into another prime (385913833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192956936 + 192956937.

It is an arithmetic number, because the mean of its divisors is an integer number (192956937).

Almost surely, 2^385913873 is an apocalyptic number.

It is an amenable number.

385913873 is a deficient number, since it is larger than the sum of its proper divisors (1).

385913873 is an equidigital number, since it uses as much as digits as its factorization.

385913873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 385913873 is about 19644.6907076696. The cubic root of 385913873 is about 728.0537844426.

The spelling of 385913873 in words is "three hundred eighty-five million, nine hundred thirteen thousand, eight hundred seventy-three".