669322 has 4 divisors (see below), whose sum is σ = 1003986. Its totient is φ = 334660.

The previous prime is 669311. The next prime is 669329. The reversal of 669322 is 223966.

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

It can be written as a sum of positive squares in only one way, i.e., 546121 + 123201 = 739^2 + 351^2 .

It is not an unprimeable number, because it can be changed into a prime (669329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167329 + ... + 167332.

2⁶⁶⁹³²² is an apocalyptic number.

669322 is a deficient number, since it is larger than the sum of its proper divisors (334664).

669322 is a wasteful number, since it uses less digits than its factorization.

669322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334663.

The product of its digits is 3888, while the sum is 28.

The square root of 669322 is about 818.1210179429. The cubic root of 669322 is about 87.4738751939.

The spelling of 669322 in words is "six hundred sixty-nine thousand, three hundred twenty-two".