388873447 has 2 divisors, whose sum is σ = 388873448. Its totient is φ = 388873446.

The previous prime is 388873439. The next prime is 388873477. The reversal of 388873447 is 744378883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 388873447 - 2³ = 388873439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388873394 and 388873403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388873477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194436723 + 194436724.

It is an arithmetic number, because the mean of its divisors is an integer number (194436724).

Almost surely, 2^388873447 is an apocalyptic number.

388873447 is a deficient number, since it is larger than the sum of its proper divisors (1).

388873447 is an equidigital number, since it uses as much as digits as its factorization.

388873447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 52.

The square root of 388873447 is about 19719.8744164358. The cubic root of 388873447 is about 729.9101953704.

The spelling of 388873447 in words is "three hundred eighty-eight million, eight hundred seventy-three thousand, four hundred forty-seven".