6463213 has 4 divisors (see below), whose sum is σ = 6843420. Its totient is φ = 6083008.

The previous prime is 6463189. The next prime is 6463231. The reversal of 6463213 is 3123646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3123646 = 2 ⋅1561823.

It can be written as a sum of positive squares in 2 ways, for example, as 3319684 + 3143529 = 1822^2 + 1773^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6463213 is a prime.

It is a d-powerful number, because it can be written as 6³ + 4⁴ + 6⁸ + 3³ + 2⁷ + 1 + 3¹⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463243) 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, 190078 + ... + 190111.

It is an arithmetic number, because the mean of its divisors is an integer number (1710855).

Almost surely, 2^6463213 is an apocalyptic number.

It is an amenable number.

6463213 is a deficient number, since it is larger than the sum of its proper divisors (380207).

6463213 is a wasteful number, since it uses less digits than its factorization.

6463213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380206.

The product of its digits is 2592, while the sum is 25.

The square root of 6463213 is about 2542.2849958256. The cubic root of 6463213 is about 186.2728200497.

Adding to 6463213 its reverse (3123646), we get a palindrome (9586859).

The spelling of 6463213 in words is "six million, four hundred sixty-three thousand, two hundred thirteen".