6438523 has 8 divisors (see below), whose sum is σ = 7924448. Its totient is φ = 5094144.

The previous prime is 6438463. The next prime is 6438539. The reversal of 6438523 is 3258346.

6438523 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6438523 - 2²¹ = 4341371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6438583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35286 + ... + 35467.

It is an arithmetic number, because the mean of its divisors is an integer number (990556).

Almost surely, 2^6438523 is an apocalyptic number.

6438523 is a deficient number, since it is larger than the sum of its proper divisors (1485925).

6438523 is a wasteful number, since it uses less digits than its factorization.

6438523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70773.

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

The square root of 6438523 is about 2537.4244816349. The cubic root of 6438523 is about 186.0353249283.

The spelling of 6438523 in words is "six million, four hundred thirty-eight thousand, five hundred twenty-three".