387212 has 12 divisors (see below), whose sum is σ = 774480. Its totient is φ = 165936.

The previous prime is 387203. The next prime is 387227. The reversal of 387212 is 212783.

387212 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

387212 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 in 3 ways as a sum of consecutive naturals, for example, 6887 + ... + 6942.

It is an arithmetic number, because the mean of its divisors is an integer number (64540).

2³⁸⁷²¹² is an apocalyptic number.

It is an amenable number.

387212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

387212 is a wasteful number, since it uses less digits than its factorization.

387212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13840 (or 13838 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 387212 is about 622.2636097347. The cubic root of 387212 is about 72.8869206923.

Adding to 387212 its reverse (212783), we get a palindrome (599995).

It can be divided in two parts, 3872 and 12, that multiplied together give a palindrome (46464).

The spelling of 387212 in words is "three hundred eighty-seven thousand, two hundred twelve".