669294 has 36 divisors (see below), whose sum is σ = 1545336. Its totient is φ = 209304.

The previous prime is 669289. The next prime is 669301. The reversal of 669294 is 492966.

It is a congruent 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 17 ways as a sum of consecutive naturals, for example, 6447 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (42926).

2⁶⁶⁹²⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772668).

669294 is an abundant number, since it is smaller than the sum of its proper divisors (876042).

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

669294 is a wasteful number, since it uses less digits than its factorization.

669294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 127 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 669294 is about 818.1039053812. The cubic root of 669294 is about 87.4726554010.

It can be divided in two parts, 6692 and 94, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 669294 in words is "six hundred sixty-nine thousand, two hundred ninety-four".