345579 has 8 divisors (see below), whose sum is σ = 496272. Its totient is φ = 212640.

The previous prime is 345577. The next prime is 345581. The reversal of 345579 is 975543.

345579 = 157² + 158² + ... + 169².

It is an interprime number because it is at equal distance from previous prime (345577) and next prime (345581).

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

It is not a de Polignac number, because 345579 - 2¹ = 345577 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (345571) 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, 4392 + ... + 4469.

It is an arithmetic number, because the mean of its divisors is an integer number (62034).

2³⁴⁵⁵⁷⁹ is an apocalyptic number.

345579 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

345579 is a deficient number, since it is larger than the sum of its proper divisors (150693).

345579 is a wasteful number, since it uses less digits than its factorization.

345579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877.

The product of its digits is 18900, while the sum is 33.

The square root of 345579 is about 587.8596771339. The cubic root of 345579 is about 70.1750042908.

The spelling of 345579 in words is "three hundred forty-five thousand, five hundred seventy-nine".