669050 has 12 divisors (see below), whose sum is σ = 1244526. Its totient is φ = 267600.

The previous prime is 669049. The next prime is 669077. The reversal of 669050 is 50966.

It can be written as a sum of positive squares in 3 ways, for example, as 358801 + 310249 = 599^2 + 557^2 .

It is a Curzon number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6641 + ... + 6740.

2⁶⁶⁹⁰⁵⁰ is an apocalyptic number.

669050 is a deficient number, since it is larger than the sum of its proper divisors (575476).

669050 is a wasteful number, since it uses less digits than its factorization.

669050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13393 (or 13388 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 669050 is about 817.9547664755. The cubic root of 669050 is about 87.4620243370.

The spelling of 669050 in words is "six hundred sixty-nine thousand, fifty".