4287855 has 32 divisors (see below), whose sum is σ = 8064000. Its totient is φ = 1918080.

The previous prime is 4287851. The next prime is 4287887. The reversal of 4287855 is 5587824.

It is not a de Polignac number, because 4287855 - 2² = 4287851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1146 + ... + 3144.

It is an arithmetic number, because the mean of its divisors is an integer number (252000).

Almost surely, 2^4287855 is an apocalyptic number.

4287855 is a deficient number, since it is larger than the sum of its proper divisors (3776145).

4287855 is a wasteful number, since it uses less digits than its factorization.

4287855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031.

The product of its digits is 89600, while the sum is 39.

The square root of 4287855 is about 2070.7136450992. The cubic root of 4287855 is about 162.4600927644.

The spelling of 4287855 in words is "four million, two hundred eighty-seven thousand, eight hundred fifty-five".