8492209 has 4 divisors (see below), whose sum is σ = 9264240. Its totient is φ = 7720180.

The previous prime is 8492201. The next prime is 8492249. The reversal of 8492209 is 9022948.

8492209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8492209 - 2³ = 8492201 is a prime.

It is a super-2 number, since 2×8492209² = 144235227399362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8492201) 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, 385999 + ... + 386020.

It is an arithmetic number, because the mean of its divisors is an integer number (2316060).

Almost surely, 2^8492209 is an apocalyptic number.

It is an amenable number.

8492209 is a deficient number, since it is larger than the sum of its proper divisors (772031).

8492209 is a wasteful number, since it uses less digits than its factorization.

8492209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772030.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 8492209 is about 2914.1394956316. The cubic root of 8492209 is about 204.0203827513.

The spelling of 8492209 in words is "eight million, four hundred ninety-two thousand, two hundred nine".