387988064 has 24 divisors (see below), whose sum is σ = 788493888. Its totient is φ = 187735680.

The previous prime is 387988063. The next prime is 387988067. The reversal of 387988064 is 460889783.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 387987997 and 387988015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387988061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194567 + ... + 196550.

It is an arithmetic number, because the mean of its divisors is an integer number (32853912).

Almost surely, 2^387988064 is an apocalyptic number.

It is an amenable number.

387988064 is an abundant number, since it is smaller than the sum of its proper divisors (400505824).

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

387988064 is a wasteful number, since it uses less digits than its factorization.

387988064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391158 (or 391150 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 387988064 is about 19697.4126219664. The cubic root of 387988064 is about 729.3558237933.

The spelling of 387988064 in words is "three hundred eighty-seven million, nine hundred eighty-eight thousand, sixty-four".