329600681 has 8 divisors (see below), whose sum is σ = 338804424. Its totient is φ = 320452480.

The previous prime is 329600659. The next prime is 329600683. The reversal of 329600681 is 186006923.

It can be written as a sum of positive squares in 4 ways, for example, as 50410000 + 279190681 = 7100^2 + 16709^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-329600681 is a prime.

It is a super-2 number, since 2×329600681² = 217273217831327522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329600683) 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, 1706 + ... + 25731.

It is an arithmetic number, because the mean of its divisors is an integer number (42350553).

Almost surely, 2^329600681 is an apocalyptic number.

It is an amenable number.

329600681 is a deficient number, since it is larger than the sum of its proper divisors (9203743).

329600681 is a wasteful number, since it uses less digits than its factorization.

329600681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27771.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 329600681 is about 18154.9079039250. The cubic root of 329600681 is about 690.7634768315.

The spelling of 329600681 in words is "three hundred twenty-nine million, six hundred thousand, six hundred eighty-one".