311996 has 6 divisors (see below), whose sum is σ = 546000. Its totient is φ = 155996.

The previous prime is 311981. The next prime is 312007. The reversal of 311996 is 699113.

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 311996.

It is an unprimeable number.

311996 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, 38996 + ... + 39003.

It is an arithmetic number, because the mean of its divisors is an integer number (91000).

2³¹¹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

311996 is a deficient number, since it is larger than the sum of its proper divisors (234004).

311996 is a wasteful number, since it uses less digits than its factorization.

311996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78003 (or 78001 counting only the distinct ones).

The product of its digits is 1458, while the sum is 29.

The square root of 311996 is about 558.5660211649. The cubic root of 311996 is about 67.8239390119.

The spelling of 311996 in words is "three hundred eleven thousand, nine hundred ninety-six".