311946 has 8 divisors (see below), whose sum is σ = 623904. Its totient is φ = 103980.

The previous prime is 311897. The next prime is 311951. The reversal of 311946 is 649113.

It is a sphenic number, since it is the product of 3 distinct primes.

311946 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

311946 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, 25990 + ... + 26001.

It is an arithmetic number, because the mean of its divisors is an integer number (77988).

2³¹¹⁹⁴⁶ is an apocalyptic number.

311946 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.

311946 is a wasteful number, since it uses less digits than its factorization.

311946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51996.

The product of its digits is 648, while the sum is 24.

The square root of 311946 is about 558.5212619050. The cubic root of 311946 is about 67.8203156982.

The spelling of 311946 in words is "three hundred eleven thousand, nine hundred forty-six".