669326 has 8 divisors (see below), whose sum is σ = 1147440. Its totient is φ = 286848.

The previous prime is 669311. The next prime is 669329. The reversal of 669326 is 623966.

669326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 669292 and 669301.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 23891 + ... + 23918.

It is an arithmetic number, because the mean of its divisors is an integer number (143430).

2⁶⁶⁹³²⁶ is an apocalyptic number.

669326 is a deficient number, since it is larger than the sum of its proper divisors (478114).

669326 is a wasteful number, since it uses less digits than its factorization.

669326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47818.

The product of its digits is 11664, while the sum is 32.

The square root of 669326 is about 818.1234625654. The cubic root of 669326 is about 87.4740494473.

It can be divided in two parts, 66 and 9326, that multiplied together give a palindrome (615516).

The spelling of 669326 in words is "six hundred sixty-nine thousand, three hundred twenty-six".