669848 has 32 divisors (see below), whose sum is σ = 1349760. Its totient is φ = 311040.

The previous prime is 669847. The next prime is 669853. The reversal of 669848 is 848966.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 669848.

It is not an unprimeable number, because it can be changed into a prime (669847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9140 + ... + 9212.

It is an arithmetic number, because the mean of its divisors is an integer number (42180).

2⁶⁶⁹⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

669848 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669848 is a wasteful number, since it uses less digits than its factorization.

669848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 143 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 669848 is about 818.4424231429. The cubic root of 669848 is about 87.4967835552.

The spelling of 669848 in words is "six hundred sixty-nine thousand, eight hundred forty-eight".