329380969 has 4 divisors (see below), whose sum is σ = 329667796. Its totient is φ = 329094144.

The previous prime is 329380951. The next prime is 329381021. The reversal of 329380969 is 969083923.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 280897600 + 48483369 = 16760^2 + 6963^2 .

It is a cyclic number.

It is not a de Polignac number, because 329380969 - 2¹³ = 329372777 is a prime.

It is a super-2 number, since 2×329380969² = 216983645478757922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329380939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141684 + ... + 143989.

It is an arithmetic number, because the mean of its divisors is an integer number (82416949).

Almost surely, 2^329380969 is an apocalyptic number.

It is an amenable number.

329380969 is a deficient number, since it is larger than the sum of its proper divisors (286827).

329380969 is a wasteful number, since it uses less digits than its factorization.

329380969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286826.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 329380969 is about 18148.8558592546. The cubic root of 329380969 is about 690.6099549393.

The spelling of 329380969 in words is "three hundred twenty-nine million, three hundred eighty thousand, nine hundred sixty-nine".