388684801 has 2 divisors, whose sum is σ = 388684802. Its totient is φ = 388684800.

The previous prime is 388684781. The next prime is 388684811. The reversal of 388684801 is 108486883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314707600 + 73977201 = 17740^2 + 8601^2 .

It is a cyclic number.

It is not a de Polignac number, because 388684801 - 2²³ = 380296193 is a prime.

It is not a weakly prime, because it can be changed into another prime (388684811) 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, 194342400 + 194342401.

It is an arithmetic number, because the mean of its divisors is an integer number (194342401).

Almost surely, 2^388684801 is an apocalyptic number.

It is an amenable number.

388684801 is a deficient number, since it is larger than the sum of its proper divisors (1).

388684801 is an equidigital number, since it uses as much as digits as its factorization.

388684801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 388684801 is about 19715.0906921576. The cubic root of 388684801 is about 729.7921476170.

The spelling of 388684801 in words is "three hundred eighty-eight million, six hundred eighty-four thousand, eight hundred one".