8438534 has 16 divisors (see below), whose sum is σ = 13865040. Its totient is φ = 3828000.

The previous prime is 8438533. The next prime is 8438567. The reversal of 8438534 is 4358348.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8438494 and 8438503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217 + ... + 4284.

It is an arithmetic number, because the mean of its divisors is an integer number (866565).

Almost surely, 2^8438534 is an apocalyptic number.

8438534 is a deficient number, since it is larger than the sum of its proper divisors (5426506).

8438534 is a wasteful number, since it uses less digits than its factorization.

8438534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575.

The product of its digits is 46080, while the sum is 35.

The square root of 8438534 is about 2904.9154893043. The cubic root of 8438534 is about 203.5896370762.

The spelling of 8438534 in words is "eight million, four hundred thirty-eight thousand, five hundred thirty-four".