669048 has 32 divisors (see below), whose sum is σ = 1703760. Its totient is φ = 218880.

The previous prime is 669029. The next prime is 669049. The reversal of 669048 is 840966.

669048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669049) 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, 1236 + ... + 1692.

2⁶⁶⁹⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851880).

669048 is an abundant number, since it is smaller than the sum of its proper divisors (1034712).

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

669048 is a wasteful number, since it uses less digits than its factorization.

669048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 669048 is about 817.9535439131. The cubic root of 669048 is about 87.4619371864.

The spelling of 669048 in words is "six hundred sixty-nine thousand, forty-eight".