387284 has 6 divisors (see below), whose sum is σ = 677754. Its totient is φ = 193640.

The previous prime is 387281. The next prime is 387307. The reversal of 387284 is 482783.

It can be written as a sum of positive squares in only one way, i.e., 386884 + 400 = 622^2 + 20^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 387284.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 387284.

It is not an unprimeable number, because it can be changed into a prime (387281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48407 + ... + 48414.

It is an arithmetic number, because the mean of its divisors is an integer number (112959).

2³⁸⁷²⁸⁴ is an apocalyptic number.

It is an amenable number.

387284 is a deficient number, since it is larger than the sum of its proper divisors (290470).

387284 is a wasteful number, since it uses less digits than its factorization.

387284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96825 (or 96823 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 387284 is about 622.3214603402. The cubic root of 387284 is about 72.8914380567.

The spelling of 387284 in words is "three hundred eighty-seven thousand, two hundred eighty-four".