312983 has 8 divisors (see below), whose sum is σ = 351120. Its totient is φ = 276480.

The previous prime is 312979. The next prime is 312989. The reversal of 312983 is 389213.

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

It is a cyclic number.

It is not a de Polignac number, because 312983 - 2² = 312979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23 + ... + 791.

It is an arithmetic number, because the mean of its divisors is an integer number (43890).

2³¹²⁹⁸³ is an apocalyptic number.

312983 is a deficient number, since it is larger than the sum of its proper divisors (38137).

312983 is a wasteful number, since it uses less digits than its factorization.

312983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 1296, while the sum is 26.

The square root of 312983 is about 559.4488359091. The cubic root of 312983 is about 67.8953841170.

The spelling of 312983 in words is "three hundred twelve thousand, nine hundred eighty-three".