388086073 has 2 divisors, whose sum is σ = 388086074. Its totient is φ = 388086072.

The previous prime is 388086053. The next prime is 388086079. The reversal of 388086073 is 370680883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226592809 + 161493264 = 15053^2 + 12708^2 .

It is an emirp because it is prime and its reverse (370680883) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388086073 is a prime.

It is a super-2 number, since 2×388086073² = 301221600113122658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (388086079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194043036 + 194043037.

It is an arithmetic number, because the mean of its divisors is an integer number (194043037).

Almost surely, 2^388086073 is an apocalyptic number.

It is an amenable number.

388086073 is a deficient number, since it is larger than the sum of its proper divisors (1).

388086073 is an equidigital number, since it uses as much as digits as its factorization.

388086073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 388086073 is about 19699.9003296971. The cubic root of 388086073 is about 729.4172323978.

The spelling of 388086073 in words is "three hundred eighty-eight million, eighty-six thousand, seventy-three".