388850393 has 2 divisors, whose sum is σ = 388850394. Its totient is φ = 388850392.

The previous prime is 388850383. The next prime is 388850431. The reversal of 388850393 is 393058883.

388850393 is nontrivially palindromic in base 7.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320159449 + 68690944 = 17893^2 + 8288^2 .

It is a cyclic number.

It is not a de Polignac number, because 388850393 - 2⁴ = 388850377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (388850383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194425196 + 194425197.

It is an arithmetic number, because the mean of its divisors is an integer number (194425197).

Almost surely, 2^388850393 is an apocalyptic number.

It is an amenable number.

388850393 is a deficient number, since it is larger than the sum of its proper divisors (1).

388850393 is an equidigital number, since it uses as much as digits as its factorization.

388850393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 388850393 is about 19719.2898705810. The cubic root of 388850393 is about 729.8957710701.

The spelling of 388850393 in words is "three hundred eighty-eight million, eight hundred fifty thousand, three hundred ninety-three".