326629 has 4 divisors (see below), whose sum is σ = 343840. Its totient is φ = 309420.

The previous prime is 326617. The next prime is 326633. The reversal of 326629 is 926623.

326629 = 122² + 123² + ... + 140².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 326629 - 2⁵ = 326597 is a prime.

It is a Duffinian number.

326629 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 326597 and 326606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8577 + ... + 8614.

It is an arithmetic number, because the mean of its divisors is an integer number (85960).

2³²⁶⁶²⁹ is an apocalyptic number.

It is an amenable number.

326629 is a deficient number, since it is larger than the sum of its proper divisors (17211).

326629 is a wasteful number, since it uses less digits than its factorization.

326629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17210.

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

The square root of 326629 is about 571.5146542303. The cubic root of 326629 is about 68.8681231009.

The spelling of 326629 in words is "three hundred twenty-six thousand, six hundred twenty-nine".