669334 has 4 divisors (see below), whose sum is σ = 1004004. Its totient is φ = 334666.

The previous prime is 669329. The next prime is 669359. The reversal of 669334 is 433966.

669334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 669296 and 669305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167332 + ... + 167335.

It is an arithmetic number, because the mean of its divisors is an integer number (251001).

2⁶⁶⁹³³⁴ is an apocalyptic number.

669334 is a deficient number, since it is larger than the sum of its proper divisors (334670).

669334 is a wasteful number, since it uses less digits than its factorization.

669334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334669.

The product of its digits is 11664, while the sum is 31.

The square root of 669334 is about 818.1283517884. The cubic root of 669334 is about 87.4743979519.

It can be divided in two parts, 669 and 334, that multiplied together give a triangular number (223446 = T₆₆₈).

The spelling of 669334 in words is "six hundred sixty-nine thousand, three hundred thirty-four".