329690 has 8 divisors (see below), whose sum is σ = 593460. Its totient is φ = 131872.

The previous prime is 329687. The next prime is 329711. The reversal of 329690 is 96923.

It can be written as a sum of positive squares in 2 ways, for example, as 323761 + 5929 = 569^2 + 77^2 .

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

It is a super-2 number, since 2×329690² = 217390992200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16475 + ... + 16494.

2³²⁹⁶⁹⁰ is an apocalyptic number.

329690 is a deficient number, since it is larger than the sum of its proper divisors (263770).

329690 is a wasteful number, since it uses less digits than its factorization.

329690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32976.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 329690 is about 574.1863808904. The cubic root of 329690 is about 69.0825868218.

The spelling of 329690 in words is "three hundred twenty-nine thousand, six hundred ninety".