8538329 has 4 divisors (see below), whose sum is σ = 8570340. Its totient is φ = 8506320.

The previous prime is 8538319. The next prime is 8538331. The reversal of 8538329 is 9238358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9238358 = 2 ⋅4619179.

It can be written as a sum of positive squares in 2 ways, for example, as 2968729 + 5569600 = 1723^2 + 2360^2 .

It is a cyclic number.

It is not a de Polignac number, because 8538329 - 2⁸ = 8538073 is a prime.

It is a super-2 number, since 2×8538329² = 145806124224482, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8538292 and 8538301.

It is not an unprimeable number, because it can be changed into a prime (8538319) 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, 15602 + ... + 16139.

It is an arithmetic number, because the mean of its divisors is an integer number (2142585).

Almost surely, 2^8538329 is an apocalyptic number.

It is an amenable number.

8538329 is a deficient number, since it is larger than the sum of its proper divisors (32011).

8538329 is a wasteful number, since it uses less digits than its factorization.

8538329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32010.

The product of its digits is 51840, while the sum is 38.

The square root of 8538329 is about 2922.0419230394. The cubic root of 8538329 is about 204.3890515516.

The spelling of 8538329 in words is "eight million, five hundred thirty-eight thousand, three hundred twenty-nine".