8533638 has 24 divisors (see below), whose sum is σ = 18640128. Its totient is φ = 2821392.

The previous prime is 8533619. The next prime is 8533639. The reversal of 8533638 is 8363358.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8533639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420 + ... + 4152.

It is an arithmetic number, because the mean of its divisors is an integer number (776672).

Almost surely, 2^8533638 is an apocalyptic number.

8533638 is an abundant number, since it is smaller than the sum of its proper divisors (10106490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8533638 is a wasteful number, since it uses less digits than its factorization.

8533638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868 (or 3865 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 8533638 is about 2921.2391206473. The cubic root of 8533638 is about 204.3516139108.

The spelling of 8533638 in words is "eight million, five hundred thirty-three thousand, six hundred thirty-eight".