18675039 has 4 divisors (see below), whose sum is σ = 24900056. Its totient is φ = 12450024.

The previous prime is 18674987. The next prime is 18675053. The reversal of 18675039 is 93057681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93057681 = 3 ⋅31019227.

It is not a de Polignac number, because 18675039 - 2⁷ = 18674911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18674988 and 18675006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18675439) 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, 3112504 + ... + 3112509.

It is an arithmetic number, because the mean of its divisors is an integer number (6225014).

Almost surely, 2^18675039 is an apocalyptic number.

18675039 is a deficient number, since it is larger than the sum of its proper divisors (6225017).

18675039 is an equidigital number, since it uses as much as digits as its factorization.

18675039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225016.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 18675039 is about 4321.4625996299. The cubic root of 18675039 is about 265.3101341144.

The spelling of 18675039 in words is "eighteen million, six hundred seventy-five thousand, thirty-nine".