329999969 has 8 divisors (see below), whose sum is σ = 356524392. Its totient is φ = 303638400.

The previous prime is 329999959. The next prime is 329999987. The reversal of 329999969 is 969999923.

It can be written as a sum of positive squares in 4 ways, for example, as 214369 + 329785600 = 463^2 + 18160^2 .

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

It is not a de Polignac number, because 329999969 - 2⁴ = 329999953 is a prime.

It is a super-2 number, since 2×329999969² = 217799959080001922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329999959) 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, 36482 + ... + 44619.

It is an arithmetic number, because the mean of its divisors is an integer number (44565549).

Almost surely, 2^329999969 is an apocalyptic number.

It is an amenable number.

329999969 is a deficient number, since it is larger than the sum of its proper divisors (26524423).

329999969 is a wasteful number, since it uses less digits than its factorization.

329999969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81427.

The product of its digits is 19131876, while the sum is 65.

The square root of 329999969 is about 18165.9012713380. The cubic root of 329999969 is about 691.0423013624.

It can be divided in two parts, 32 and 9999969, that added together give a palindrome (10000001).

The spelling of 329999969 in words is "three hundred twenty-nine million, nine hundred ninety-nine thousand, nine hundred sixty-nine".