8479409 has 8 divisors (see below), whose sum is σ = 8616960. Its totient is φ = 8343216.

The previous prime is 8479403. The next prime is 8479477. The reversal of 8479409 is 9049748.

8479409 is nontrivially palindromic in base 11.

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 8479409 - 2⁸ = 8479153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8479403) 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, 22547 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (1077120).

Almost surely, 2^8479409 is an apocalyptic number.

It is an amenable number.

8479409 is a deficient number, since it is larger than the sum of its proper divisors (137551).

8479409 is a wasteful number, since it uses less digits than its factorization.

8479409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 8479409 is about 2911.9424788275. The cubic root of 8479409 is about 203.9178270224.

It can be divided in two parts, 8479 and 409, that added together give a palindrome (8888).

The spelling of 8479409 in words is "eight million, four hundred seventy-nine thousand, four hundred nine".