345469 has 4 divisors (see below), whose sum is σ = 354844. Its totient is φ = 336096.

The previous prime is 345463. The next prime is 345473. The reversal of 345469 is 964543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964543 = 83 ⋅11621.

It can be written as a sum of positive squares in 2 ways, for example, as 319225 + 26244 = 565^2 + 162^2 .

It is a cyclic number.

It is not a de Polignac number, because 345469 - 2³ = 345461 is a prime.

It is a super-2 number, since 2×345469² = 238697659922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345461) 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 3 ways as a sum of consecutive naturals, for example, 4632 + ... + 4705.

It is an arithmetic number, because the mean of its divisors is an integer number (88711).

2³⁴⁵⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

345469 is a deficient number, since it is larger than the sum of its proper divisors (9375).

345469 is an equidigital number, since it uses as much as digits as its factorization.

345469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374.

The product of its digits is 12960, while the sum is 31.

The square root of 345469 is about 587.7661099451. The cubic root of 345469 is about 70.1675577835.

The spelling of 345469 in words is "three hundred forty-five thousand, four hundred sixty-nine".