311704 has 16 divisors (see below), whose sum is σ = 597600. Its totient is φ = 152352.

The previous prime is 311687. The next prime is 311711. The reversal of 311704 is 407113.

311704 = 132² + 133² + ... + 147².

It is a congruent number.

It is an unprimeable number.

311704 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39 + ... + 790.

It is an arithmetic number, because the mean of its divisors is an integer number (37350).

2³¹¹⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

311704 is a deficient number, since it is larger than the sum of its proper divisors (285896).

311704 is a wasteful number, since it uses less digits than its factorization.

311704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 311704 is about 558.3045763739. The cubic root of 311704 is about 67.8027733860.

Adding to 311704 its reverse (407113), we get a palindrome (718817).

The spelling of 311704 in words is "three hundred eleven thousand, seven hundred four", and thus it is an iban number.