387788 has 12 divisors (see below), whose sum is σ = 702240. Its totient is φ = 187152.

The previous prime is 387781. The next prime is 387791. The reversal of 387788 is 887783.

It is not an unprimeable number, because it can be changed into a prime (387781) by changing a digit.

387788 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 1556 + ... + 1787.

It is an arithmetic number, because the mean of its divisors is an integer number (58520).

2³⁸⁷⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

387788 is a deficient number, since it is larger than the sum of its proper divisors (314452).

387788 is a wasteful number, since it uses less digits than its factorization.

387788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 3374 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 387788 is about 622.7262641000. The cubic root of 387788 is about 72.9230439411.

The spelling of 387788 in words is "three hundred eighty-seven thousand, seven hundred eighty-eight".