387628 has 6 divisors (see below), whose sum is σ = 678356. Its totient is φ = 193812.

The previous prime is 387623. The next prime is 387631. The reversal of 387628 is 826783.

It is a happy number.

387628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3⁷ + 8⁴ + 6⁴ + 7⁶ + 2⁸ + 8⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 387593 and 387602.

It is not an unprimeable number, because it can be changed into a prime (387623) by changing a digit.

387628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48450 + ... + 48457.

2³⁸⁷⁶²⁸ is an apocalyptic number.

It is an amenable number.

387628 is a deficient number, since it is larger than the sum of its proper divisors (290728).

387628 is a wasteful number, since it uses less digits than its factorization.

387628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96911 (or 96909 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 387628 is about 622.5977834847. The cubic root of 387628 is about 72.9130132954.

The spelling of 387628 in words is "three hundred eighty-seven thousand, six hundred twenty-eight".