4638271 has 4 divisors (see below), whose sum is σ = 5059944. Its totient is φ = 4216600.

The previous prime is 4638247. The next prime is 4638287. The reversal of 4638271 is 1728364.

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

It is a cyclic number.

It is not a de Polignac number, because 4638271 - 2⁵ = 4638239 is a prime.

It is a Duffinian number.

4638271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638211) 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 3 ways as a sum of consecutive naturals, for example, 210820 + ... + 210841.

It is an arithmetic number, because the mean of its divisors is an integer number (1264986).

Almost surely, 2^4638271 is an apocalyptic number.

4638271 is a deficient number, since it is larger than the sum of its proper divisors (421673).

4638271 is a wasteful number, since it uses less digits than its factorization.

4638271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421672.

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

The square root of 4638271 is about 2153.6645514100. The cubic root of 4638271 is about 166.7702986602.

The spelling of 4638271 in words is "four million, six hundred thirty-eight thousand, two hundred seventy-one".