4208865 has 8 divisors (see below), whose sum is σ = 6734208. Its totient is φ = 2244720.

The previous prime is 4208863. The next prime is 4208879. The reversal of 4208865 is 5688024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4208865 - 2¹ = 4208863 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

4208865 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4208863) 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, 140281 + ... + 140310.

It is an arithmetic number, because the mean of its divisors is an integer number (841776).

Almost surely, 2^4208865 is an apocalyptic number.

It is an amenable number.

4208865 is a deficient number, since it is larger than the sum of its proper divisors (2525343).

4208865 is a wasteful number, since it uses less digits than its factorization.

4208865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280599.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 4208865 is about 2051.5518516479. The cubic root of 4208865 is about 161.4563010589.

The spelling of 4208865 in words is "four million, two hundred eight thousand, eight hundred sixty-five".