4218953 has 4 divisors (see below), whose sum is σ = 4232580. Its totient is φ = 4205328.

The previous prime is 4218947. The next prime is 4218961. The reversal of 4218953 is 3598124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 4108729 = 332^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 4218953 - 2¹⁰ = 4217929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4218353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6338 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (1058145).

Almost surely, 2^4218953 is an apocalyptic number.

It is an amenable number.

4218953 is a deficient number, since it is larger than the sum of its proper divisors (13627).

4218953 is a wasteful number, since it uses less digits than its factorization.

4218953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13626.

The product of its digits is 8640, while the sum is 32.

The square root of 4218953 is about 2054.0090067962. The cubic root of 4218953 is about 161.5851934160.

The spelling of 4218953 in words is "four million, two hundred eighteen thousand, nine hundred fifty-three".