329813 has 4 divisors (see below), whose sum is σ = 359808. Its totient is φ = 299820.

The previous prime is 329803. The next prime is 329863. The reversal of 329813 is 318923.

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 329813 - 2⁸ = 329557 is a prime.

It is a super-2 number, since 2×329813² = 217553229938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14981 + ... + 15002.

It is an arithmetic number, because the mean of its divisors is an integer number (89952).

2³²⁹⁸¹³ is an apocalyptic number.

It is an amenable number.

329813 is a deficient number, since it is larger than the sum of its proper divisors (29995).

329813 is a wasteful number, since it uses less digits than its factorization.

329813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29994.

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

The square root of 329813 is about 574.2934789809. The cubic root of 329813 is about 69.0911768121.

The spelling of 329813 in words is "three hundred twenty-nine thousand, eight hundred thirteen".