4321636 has 18 divisors (see below), whose sum is σ = 8313830. Its totient is φ = 1964160.

The previous prime is 4321633. The next prime is 4321643. The reversal of 4321636 is 6361234.

It can be written as a sum of positive squares in only one way, i.e., 2579236 + 1742400 = 1606^2 + 1320^2 .

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 4321636.

It is not an unprimeable number, because it can be changed into a prime (4321633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3981 + ... + 4948.

Almost surely, 2^4321636 is an apocalyptic number.

It is an amenable number.

4321636 is a deficient number, since it is larger than the sum of its proper divisors (3992194).

4321636 is a wasteful number, since it uses less digits than its factorization.

4321636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8955 (or 8942 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 4321636 is about 2078.8544922625. The cubic root of 4321636 is about 162.8856136011.

The spelling of 4321636 in words is "four million, three hundred twenty-one thousand, six hundred thirty-six".