388629473 has 2 divisors, whose sum is σ = 388629474. Its totient is φ = 388629472.

The previous prime is 388629421. The next prime is 388629533. The reversal of 388629473 is 374926883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295564864 + 93064609 = 17192^2 + 9647^2 .

It is a cyclic number.

It is not a de Polignac number, because 388629473 - 2⁸ = 388629217 is a prime.

It is not a weakly prime, because it can be changed into another prime (388625473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194314736 + 194314737.

It is an arithmetic number, because the mean of its divisors is an integer number (194314737).

Almost surely, 2^388629473 is an apocalyptic number.

It is an amenable number.

388629473 is a deficient number, since it is larger than the sum of its proper divisors (1).

388629473 is an equidigital number, since it uses as much as digits as its factorization.

388629473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 50.

The square root of 388629473 is about 19713.6874531377. The cubic root of 388629473 is about 729.7575181384.

The spelling of 388629473 in words is "three hundred eighty-eight million, six hundred twenty-nine thousand, four hundred seventy-three".