312706 has 4 divisors (see below), whose sum is σ = 469062. Its totient is φ = 156352.

The previous prime is 312703. The next prime is 312709. The reversal of 312706 is 607213.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (312703) and next prime (312709).

It can be written as a sum of positive squares in only one way, i.e., 312481 + 225 = 559^2 + 15^2 .

It is not an unprimeable number, because it can be changed into a prime (312701) by changing a digit.

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 as a sum of consecutive naturals, namely, 78175 + ... + 78178.

2³¹²⁷⁰⁶ is an apocalyptic number.

312706 is a deficient number, since it is larger than the sum of its proper divisors (156356).

312706 is a wasteful number, since it uses less digits than its factorization.

312706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156355.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 312706 is about 559.2012160216. The cubic root of 312706 is about 67.8753483404.

Adding to 312706 its reverse (607213), we get a palindrome (919919).

The spelling of 312706 in words is "three hundred twelve thousand, seven hundred six".