320678 has 8 divisors (see below), whose sum is σ = 485760. Its totient is φ = 158760.

The previous prime is 320669. The next prime is 320687. The reversal of 320678 is 876023.

It is an interprime number because it is at equal distance from previous prime (320669) and next prime (320687).

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

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 320678.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (60720).

2³²⁰⁶⁷⁸ is an apocalyptic number.

320678 is a deficient number, since it is larger than the sum of its proper divisors (165082).

320678 is a wasteful number, since it uses less digits than its factorization.

320678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 320678 is about 566.2843808547. The cubic root of 320678 is about 68.4473106110.

The spelling of 320678 in words is "three hundred twenty thousand, six hundred seventy-eight".