387976822 has 16 divisors (see below), whose sum is σ = 629311680. Its totient is φ = 178691968.

The previous prime is 387976793. The next prime is 387976843. The reversal of 387976822 is 228679783.

It is a self number, because there is not a number n which added to its sum of digits gives 387976822.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 119797 + ... + 122992.

It is an arithmetic number, because the mean of its divisors is an integer number (39331980).

Almost surely, 2^387976822 is an apocalyptic number.

387976822 is a deficient number, since it is larger than the sum of its proper divisors (241334858).

387976822 is a wasteful number, since it uses less digits than its factorization.

387976822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242855.

The product of its digits is 2032128, while the sum is 52.

The square root of 387976822 is about 19697.1272524701. The cubic root of 387976822 is about 729.3487793349.

The spelling of 387976822 in words is "three hundred eighty-seven million, nine hundred seventy-six thousand, eight hundred twenty-two".