329254661 has 8 divisors (see below), whose sum is σ = 341047800. Its totient is φ = 317490880.

The previous prime is 329254649. The next prime is 329254669. The reversal of 329254661 is 166452923.

It can be written as a sum of positive squares in 4 ways, for example, as 2910436 + 326344225 = 1706^2 + 18065^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 329254661 - 2¹⁴ = 329238277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329254669) 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, 16895 + ... + 30723.

It is an arithmetic number, because the mean of its divisors is an integer number (42630975).

Almost surely, 2^329254661 is an apocalyptic number.

It is an amenable number.

329254661 is a deficient number, since it is larger than the sum of its proper divisors (11793139).

329254661 is a wasteful number, since it uses less digits than its factorization.

329254661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14679.

The product of its digits is 77760, while the sum is 38.

The square root of 329254661 is about 18145.3757470051. The cubic root of 329254661 is about 690.5216673911.

The spelling of 329254661 in words is "three hundred twenty-nine million, two hundred fifty-four thousand, six hundred sixty-one".