387854556 has 12 divisors (see below), whose sum is σ = 904993992. Its totient is φ = 129284848.

The previous prime is 387854549. The next prime is 387854557. The reversal of 387854556 is 655458783.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 387854499 and 387854508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387854557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16160595 + ... + 16160618.

It is an arithmetic number, because the mean of its divisors is an integer number (75416166).

Almost surely, 2^387854556 is an apocalyptic number.

It is an amenable number.

387854556 is an abundant number, since it is smaller than the sum of its proper divisors (517139436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387854556 is a wasteful number, since it uses less digits than its factorization.

387854556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32321220 (or 32321218 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 51.

The square root of 387854556 is about 19694.0233573539. The cubic root of 387854556 is about 729.2721562637.

The spelling of 387854556 in words is "three hundred eighty-seven million, eight hundred fifty-four thousand, five hundred fifty-six".