6463239 has 4 divisors (see below), whose sum is σ = 8617656. Its totient is φ = 4308824.

The previous prime is 6463231. The next prime is 6463243. The reversal of 6463239 is 9323646.

6463239 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 6463239 - 2³ = 6463231 is a prime.

It is a super-2 number, since 2×6463239² = 83546916742242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6² + 4² + 6⁸ + 3⁴ + 2⁹ + 3¹⁴ + 9 .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463231) 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, 1077204 + ... + 1077209.

It is an arithmetic number, because the mean of its divisors is an integer number (2154414).

Almost surely, 2^6463239 is an apocalyptic number.

6463239 is a deficient number, since it is larger than the sum of its proper divisors (2154417).

6463239 is a wasteful number, since it uses less digits than its factorization.

6463239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154416.

The product of its digits is 23328, while the sum is 33.

The square root of 6463239 is about 2542.2901093306. The cubic root of 6463239 is about 186.2730698268.

The spelling of 6463239 in words is "six million, four hundred sixty-three thousand, two hundred thirty-nine".