345279 has 8 divisors (see below), whose sum is σ = 502272. Its totient is φ = 209240.

The previous prime is 345271. The next prime is 345307. The reversal of 345279 is 972543.

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 345279 - 2³ = 345271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5199 + ... + 5264.

It is an arithmetic number, because the mean of its divisors is an integer number (62784).

2³⁴⁵²⁷⁹ is an apocalyptic number.

345279 is a deficient number, since it is larger than the sum of its proper divisors (156993).

345279 is a wasteful number, since it uses less digits than its factorization.

345279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10477.

The product of its digits is 7560, while the sum is 30.

The square root of 345279 is about 587.6044587986. The cubic root of 345279 is about 70.1546919105.

Subtracting 345279 from its reverse (972543), we obtain a square (627264 = 792²).

The spelling of 345279 in words is "three hundred forty-five thousand, two hundred seventy-nine".