4639213 has 4 divisors (see below), whose sum is σ = 4644540. Its totient is φ = 4633888.

The previous prime is 4639189. The next prime is 4639237. The reversal of 4639213 is 3129364.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (4639189) and next prime (4639237).

It can be written as a sum of positive squares in 2 ways, for example, as 3433609 + 1205604 = 1853^2 + 1098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4639213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639513) 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, 1018 + ... + 3211.

It is an arithmetic number, because the mean of its divisors is an integer number (1161135).

Almost surely, 2^4639213 is an apocalyptic number.

It is an amenable number.

4639213 is a deficient number, since it is larger than the sum of its proper divisors (5327).

4639213 is a wasteful number, since it uses less digits than its factorization.

4639213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326.

The product of its digits is 3888, while the sum is 28.

The square root of 4639213 is about 2153.8832373181. The cubic root of 4639213 is about 166.7815878516.

The spelling of 4639213 in words is "four million, six hundred thirty-nine thousand, two hundred thirteen".