306879 has 4 divisors (see below), whose sum is σ = 409176. Its totient is φ = 204584.

The previous prime is 306877. The next prime is 306883. The reversal of 306879 is 978603.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 306879 - 2¹ = 306877 is a prime.

It is a D-number.

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 306879.

It is not an unprimeable number, because it can be changed into a prime (306871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51144 + ... + 51149.

It is an arithmetic number, because the mean of its divisors is an integer number (102294).

2³⁰⁶⁸⁷⁹ is an apocalyptic number.

306879 is a deficient number, since it is larger than the sum of its proper divisors (102297).

306879 is a wasteful number, since it uses less digits than its factorization.

306879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102296.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 306879 is about 553.9666054917. The cubic root of 306879 is about 67.4511031337.

The spelling of 306879 in words is "three hundred six thousand, eight hundred seventy-nine".