4643813 has 4 divisors (see below), whose sum is σ = 4648128. Its totient is φ = 4639500.

The previous prime is 4643801. The next prime is 4643843. The reversal of 4643813 is 3183464.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4643813 - 2¹⁰ = 4642789 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 (4643843) 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, 938 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (1162032).

Almost surely, 2^4643813 is an apocalyptic number.

It is an amenable number.

4643813 is a deficient number, since it is larger than the sum of its proper divisors (4315).

4643813 is a wasteful number, since it uses less digits than its factorization.

4643813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314.

The product of its digits is 6912, while the sum is 29.

The square root of 4643813 is about 2154.9508115036. The cubic root of 4643813 is about 166.8366935972.

The spelling of 4643813 in words is "four million, six hundred forty-three thousand, eight hundred thirteen".