388611667 has 4 divisors (see below), whose sum is σ = 388668280. Its totient is φ = 388555056.

The previous prime is 388611607. The next prime is 388611679. The reversal of 388611667 is 766116883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 388611667 - 2²³ = 380223059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388611607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16317 + ... + 32302.

It is an arithmetic number, because the mean of its divisors is an integer number (97167070).

Almost surely, 2^388611667 is an apocalyptic number.

388611667 is a deficient number, since it is larger than the sum of its proper divisors (56613).

388611667 is an equidigital number, since it uses as much as digits as its factorization.

388611667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56612.

The product of its digits is 290304, while the sum is 46.

The square root of 388611667 is about 19713.2358328104. The cubic root of 388611667 is about 729.7463727658.

The spelling of 388611667 in words is "three hundred eighty-eight million, six hundred eleven thousand, six hundred sixty-seven".