18875323 has 4 divisors (see below), whose sum is σ = 19314328. Its totient is φ = 18436320.

The previous prime is 18875299. The next prime is 18875347. The reversal of 18875323 is 32357881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32357881 = 29 ⋅1115789.

It is an interprime number because it is at equal distance from previous prime (18875299) and next prime (18875347).

It is a cyclic number.

It is not a de Polignac number, because 18875323 - 2¹³ = 18867131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18875393) 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, 219438 + ... + 219523.

It is an arithmetic number, because the mean of its divisors is an integer number (4828582).

Almost surely, 2^18875323 is an apocalyptic number.

18875323 is a deficient number, since it is larger than the sum of its proper divisors (439005).

18875323 is an equidigital number, since it uses as much as digits as its factorization.

18875323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439004.

The product of its digits is 40320, while the sum is 37.

The square root of 18875323 is about 4344.5739722095. The cubic root of 18875323 is about 266.2552198349.

The spelling of 18875323 in words is "eighteen million, eight hundred seventy-five thousand, three hundred twenty-three".