107439909 has 4 divisors (see below), whose sum is σ = 143253216. Its totient is φ = 71626604.

The previous prime is 107439907. The next prime is 107439919. The reversal of 107439909 is 909934701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 107439909 - 2¹ = 107439907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107439907) 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, 17906649 + ... + 17906654.

It is an arithmetic number, because the mean of its divisors is an integer number (35813304).

Almost surely, 2^107439909 is an apocalyptic number.

It is an amenable number.

107439909 is a deficient number, since it is larger than the sum of its proper divisors (35813307).

107439909 is an equidigital number, since it uses as much as digits as its factorization.

107439909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35813306.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 107439909 is about 10365.3224262442. The cubic root of 107439909 is about 475.3956577822.

The spelling of 107439909 in words is "one hundred seven million, four hundred thirty-nine thousand, nine hundred nine".