2909329 has 8 divisors (see below), whose sum is σ = 3139560. Its totient is φ = 2685696.

The previous prime is 2909323. The next prime is 2909353. The reversal of 2909329 is 9239092.

It can be written as a sum of positive squares in 4 ways, for example, as 801025 + 2108304 = 895^2 + 1452^2 .

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 2909329 - 2⁹ = 2908817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2909294 and 2909303.

It is not an unprimeable number, because it can be changed into a prime (2909323) 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, 714 + ... + 2515.

It is an arithmetic number, because the mean of its divisors is an integer number (392445).

2^2909329 is an apocalyptic number.

It is an amenable number.

2909329 is a deficient number, since it is larger than the sum of its proper divisors (230231).

2909329 is a wasteful number, since it uses less digits than its factorization.

2909329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 2909329 is about 1705.6755260014. The cubic root of 2909329 is about 142.7570654794.

The spelling of 2909329 in words is "two million, nine hundred nine thousand, three hundred twenty-nine".