8538403 has 4 divisors (see below), whose sum is σ = 9040680. Its totient is φ = 8036128.

The previous prime is 8538401. The next prime is 8538419. The reversal of 8538403 is 3048358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3048358 = 2 ⋅1524179.

It is a cyclic number.

It is not a de Polignac number, because 8538403 - 2¹ = 8538401 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8538401) 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, 251113 + ... + 251146.

It is an arithmetic number, because the mean of its divisors is an integer number (2260170).

Almost surely, 2^8538403 is an apocalyptic number.

8538403 is a deficient number, since it is larger than the sum of its proper divisors (502277).

8538403 is a wasteful number, since it uses less digits than its factorization.

8538403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502276.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 8538403 is about 2922.0545853902. The cubic root of 8538403 is about 204.3896420163.

The spelling of 8538403 in words is "eight million, five hundred thirty-eight thousand, four hundred three".