8342909 has 4 divisors (see below), whose sum is σ = 8479740. Its totient is φ = 8206080.

The previous prime is 8342879. The next prime is 8342933. The reversal of 8342909 is 9092438.

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 77284 + 8265625 = 278^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 8342909 - 2²⁰ = 7294333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8342959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68324 + ... + 68445.

It is an arithmetic number, because the mean of its divisors is an integer number (2119935).

Almost surely, 2^8342909 is an apocalyptic number.

It is an amenable number.

8342909 is a deficient number, since it is larger than the sum of its proper divisors (136831).

8342909 is a wasteful number, since it uses less digits than its factorization.

8342909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136830.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 8342909 is about 2888.4094238871. The cubic root of 8342909 is about 202.8176916461.

The spelling of 8342909 in words is "eight million, three hundred forty-two thousand, nine hundred nine".