4287636 has 18 divisors (see below), whose sum is σ = 10838282. Its totient is φ = 1429200.

The previous prime is 4287623. The next prime is 4287643. The reversal of 4287636 is 6367824.

It can be written as a sum of positive squares in only one way, i.e., 3920400 + 367236 = 1980^2 + 606^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 119101 = 4287636 / (4 + 2 + 8 + 7 + 6 + 3 + 6).

It is a d-powerful number, because it can be written as 4¹¹ + 2 + 8 + 7 + 6⁶ + 3 + 6⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 4287636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59515 + ... + 59586.

Almost surely, 2^4287636 is an apocalyptic number.

It is an amenable number.

4287636 is an abundant number, since it is smaller than the sum of its proper divisors (6550646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4287636 is a wasteful number, since it uses less digits than its factorization.

4287636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119111 (or 119106 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 4287636 is about 2070.6607641041. The cubic root of 4287636 is about 162.4573268619.

It can be divided in two parts, 42 and 87636, that added together give a palindrome (87678).

The spelling of 4287636 in words is "four million, two hundred eighty-seven thousand, six hundred thirty-six".