4287805 has 8 divisors (see below), whose sum is σ = 5176152. Its totient is φ = 3409728.

The previous prime is 4287793. The next prime is 4287809. The reversal of 4287805 is 5087824.

It can be written as a sum of positive squares in 4 ways, for example, as 2010724 + 2277081 = 1418^2 + 1509^2 .

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 4287805 - 2⁷ = 4287677 is a prime.

It is a Duffinian number.

4287805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287809) 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, 1614 + ... + 3343.

It is an arithmetic number, because the mean of its divisors is an integer number (647019).

Almost surely, 2^4287805 is an apocalyptic number.

It is an amenable number.

4287805 is a deficient number, since it is larger than the sum of its proper divisors (888347).

4287805 is a wasteful number, since it uses less digits than its factorization.

4287805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 4287805 is about 2070.7015719316. The cubic root of 4287805 is about 162.4594612881.

The spelling of 4287805 in words is "four million, two hundred eighty-seven thousand, eight hundred five".