669341 has 4 divisors (see below), whose sum is σ = 708732. Its totient is φ = 629952.

The previous prime is 669329. The next prime is 669359. The reversal of 669341 is 143966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143966 = 2 ⋅71983.

It can be written as a sum of positive squares in 2 ways, for example, as 606841 + 62500 = 779^2 + 250^2 .

It is not a de Polignac number, because 669341 - 2¹⁴ = 652957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669301) 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, 19670 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (177183).

2⁶⁶⁹³⁴¹ is an apocalyptic number.

It is an amenable number.

669341 is a deficient number, since it is larger than the sum of its proper divisors (39391).

669341 is a wasteful number, since it uses less digits than its factorization.

669341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39390.

The product of its digits is 3888, while the sum is 29.

The square root of 669341 is about 818.1326298346. The cubic root of 669341 is about 87.4747028911.

The spelling of 669341 in words is "six hundred sixty-nine thousand, three hundred forty-one".