8434385 has 16 divisors (see below), whose sum is σ = 10886400. Its totient is φ = 6253056.

The previous prime is 8434379. The next prime is 8434403. The reversal of 8434385 is 5834348.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8434385 - 2¹⁴ = 8418001 is a prime.

It is a super-2 number, since 2×8434385² = 142277700656450, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3521 + ... + 5409.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^8434385 is an apocalyptic number.

It is an amenable number.

8434385 is a deficient number, since it is larger than the sum of its proper divisors (2452015).

8434385 is a wasteful number, since it uses less digits than its factorization.

8434385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960.

The product of its digits is 46080, while the sum is 35.

The square root of 8434385 is about 2904.2012671301. The cubic root of 8434385 is about 203.5562650917.

The spelling of 8434385 in words is "eight million, four hundred thirty-four thousand, three hundred eighty-five".