345489 has 4 divisors (see below), whose sum is σ = 460656. Its totient is φ = 230324.

The previous prime is 345487. The next prime is 345511. The reversal of 345489 is 984543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345489 - 2¹ = 345487 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 4⁶ + 4⁹ + 5 + 8³ + 9⁵ .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (345487) 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, 57579 + ... + 57584.

It is an arithmetic number, because the mean of its divisors is an integer number (115164).

2³⁴⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

345489 is a deficient number, since it is larger than the sum of its proper divisors (115167).

345489 is a wasteful number, since it uses less digits than its factorization.

345489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115166.

The product of its digits is 17280, while the sum is 33.

The square root of 345489 is about 587.7831232691. The cubic root of 345489 is about 70.1689118115.

The spelling of 345489 in words is "three hundred forty-five thousand, four hundred eighty-nine".