4638253 has 4 divisors (see below), whose sum is σ = 4645728. Its totient is φ = 4630780.

The previous prime is 4638247. The next prime is 4638287. The reversal of 4638253 is 3528364.

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 a de Polignac number, because none of the positive numbers 2^k-4638253 is a prime.

It is a d-powerful number, because it can be written as 4² + 6⁶ + 3³ + 8² + 2²² + 5⁸ + 3⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2713 + ... + 4078.

It is an arithmetic number, because the mean of its divisors is an integer number (1161432).

Almost surely, 2^4638253 is an apocalyptic number.

It is an amenable number.

4638253 is a deficient number, since it is larger than the sum of its proper divisors (7475).

4638253 is an equidigital number, since it uses as much as digits as its factorization.

4638253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474.

The product of its digits is 17280, while the sum is 31.

The square root of 4638253 is about 2153.6603724822. The cubic root of 4638253 is about 166.7700829283.

The spelling of 4638253 in words is "four million, six hundred thirty-eight thousand, two hundred fifty-three".