669122 has 4 divisors (see below), whose sum is σ = 1003686. Its totient is φ = 334560.

The previous prime is 669121. The next prime is 669127. The reversal of 669122 is 221966.

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., 654481 + 14641 = 809^2 + 121^2 .

It is a junction number, because it is equal to n+sod(n) for n = 669091 and 669100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167279 + ... + 167282.

2⁶⁶⁹¹²² is an apocalyptic number.

669122 is a deficient number, since it is larger than the sum of its proper divisors (334564).

669122 is a wasteful number, since it uses less digits than its factorization.

669122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334563.

The product of its digits is 1296, while the sum is 26.

The square root of 669122 is about 817.9987775052. The cubic root of 669122 is about 87.4651616411.

It can be divided in two parts, 669 and 122, that multiplied together give a palindrome (81618).

The spelling of 669122 in words is "six hundred sixty-nine thousand, one hundred twenty-two".