8494409 has 16 divisors (see below), whose sum is σ = 10699776. Its totient is φ = 6550800.

The previous prime is 8494399. The next prime is 8494439. The reversal of 8494409 is 9044948.

It is a cyclic number.

It is not a de Polignac number, because 8494409 - 2¹⁶ = 8428873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8494439) 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, 7724 + ... + 8754.

It is an arithmetic number, because the mean of its divisors is an integer number (668736).

Almost surely, 2^8494409 is an apocalyptic number.

It is an amenable number.

8494409 is a deficient number, since it is larger than the sum of its proper divisors (2205367).

8494409 is a wasteful number, since it uses less digits than its factorization.

8494409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 8494409 is about 2914.5169411071. The cubic root of 8494409 is about 204.0379991370.

The spelling of 8494409 in words is "eight million, four hundred ninety-four thousand, four hundred nine".