306379 has 4 divisors (see below), whose sum is σ = 308560. Its totient is φ = 304200.

The previous prime is 306377. The next prime is 306389. The reversal of 306379 is 973603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973603 = 227 ⋅4289.

It is a cyclic number.

It is not a de Polignac number, because 306379 - 2¹ = 306377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864 + ... + 1165.

It is an arithmetic number, because the mean of its divisors is an integer number (77140).

2³⁰⁶³⁷⁹ is an apocalyptic number.

306379 is a deficient number, since it is larger than the sum of its proper divisors (2181).

306379 is a wasteful number, since it uses less digits than its factorization.

306379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 306379 is about 553.5151307778. The cubic root of 306379 is about 67.4144503763.

The spelling of 306379 in words is "three hundred six thousand, three hundred seventy-nine".