312684 has 24 divisors (see below), whose sum is σ = 741888. Its totient is φ = 102480.

The previous prime is 312679. The next prime is 312701. The reversal of 312684 is 486213.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312684.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669 + ... + 1035.

It is an arithmetic number, because the mean of its divisors is an integer number (30912).

2³¹²⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

312684 is an abundant number, since it is smaller than the sum of its proper divisors (429204).

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

312684 is a wasteful number, since it uses less digits than its factorization.

312684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 443 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 312684 is about 559.1815447598. The cubic root of 312684 is about 67.8737565441.

Adding to 312684 its reverse (486213), we get a palindrome (798897).

The spelling of 312684 in words is "three hundred twelve thousand, six hundred eighty-four".