109329409 has 16 divisors (see below), whose sum is σ = 126459520. Its totient is φ = 92586240.

The previous prime is 109329371. The next prime is 109329427. The reversal of 109329409 is 904923901.

It is a cyclic number.

It is not a de Polignac number, because 109329409 - 2¹⁹ = 108805121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109329109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386182 + ... + 386464.

It is an arithmetic number, because the mean of its divisors is an integer number (7903720).

Almost surely, 2^109329409 is an apocalyptic number.

It is an amenable number.

109329409 is a deficient number, since it is larger than the sum of its proper divisors (17130111).

109329409 is a wasteful number, since it uses less digits than its factorization.

109329409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 109329409 is about 10456.0704377888. The cubic root of 109329409 is about 478.1663388809.

The spelling of 109329409 in words is "one hundred nine million, three hundred twenty-nine thousand, four hundred nine".