667326 has 16 divisors (see below), whose sum is σ = 1456128. Its totient is φ = 202200.

The previous prime is 667321. The next prime is 667333. The reversal of 667326 is 623766.

It is a junction number, because it is equal to n+sod(n) for n = 667293 and 667302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4990 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (91008).

2⁶⁶⁷³²⁶ is an apocalyptic number.

667326 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

667326 is an abundant number, since it is smaller than the sum of its proper divisors (788802).

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

667326 is a wasteful number, since it uses less digits than its factorization.

667326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10127.

The product of its digits is 9072, while the sum is 30.

The square root of 667326 is about 816.9002387073. The cubic root of 667326 is about 87.3868360207.

The spelling of 667326 in words is "six hundred sixty-seven thousand, three hundred twenty-six".