4638217 has 4 divisors (see below), whose sum is σ = 4703616. Its totient is φ = 4572820.

The previous prime is 4638211. The next prime is 4638239. The reversal of 4638217 is 7128364.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4638217 - 2⁷ = 4638089 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

4638217 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4638211) 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, 32593 + ... + 32734.

It is an arithmetic number, because the mean of its divisors is an integer number (1175904).

Almost surely, 2^4638217 is an apocalyptic number.

It is an amenable number.

4638217 is a deficient number, since it is larger than the sum of its proper divisors (65399).

4638217 is an equidigital number, since it uses as much as digits as its factorization.

4638217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65398.

The product of its digits is 8064, while the sum is 31.

The square root of 4638217 is about 2153.6520146022. The cubic root of 4638217 is about 166.7696514628.

The spelling of 4638217 in words is "four million, six hundred thirty-eight thousand, two hundred seventeen".