669548 has 12 divisors (see below), whose sum is σ = 1278312. Its totient is φ = 304320.

The previous prime is 669527. The next prime is 669551. The reversal of 669548 is 845966.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 669548.

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 3 ways as a sum of consecutive naturals, for example, 7565 + ... + 7652.

It is an arithmetic number, because the mean of its divisors is an integer number (106526).

2⁶⁶⁹⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

669548 is a deficient number, since it is larger than the sum of its proper divisors (608764).

669548 is a wasteful number, since it uses less digits than its factorization.

669548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15232 (or 15230 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 669548 is about 818.2591276607. The cubic root of 669548 is about 87.4837194199.

The spelling of 669548 in words is "six hundred sixty-nine thousand, five hundred forty-eight".