18875093 has 4 divisors (see below), whose sum is σ = 18883788. Its totient is φ = 18866400.

The previous prime is 18875081. The next prime is 18875107. The reversal of 18875093 is 39057881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39057881 = 71 ⋅550111.

It can be written as a sum of positive squares in 2 ways, for example, as 11135569 + 7739524 = 3337^2 + 2782^2 .

It is a cyclic number.

It is not a de Polignac number, because 18875093 - 2¹² = 18870997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18875093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18875053) 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, 1955 + ... + 6447.

It is an arithmetic number, because the mean of its divisors is an integer number (4720947).

Almost surely, 2^18875093 is an apocalyptic number.

It is an amenable number.

18875093 is a deficient number, since it is larger than the sum of its proper divisors (8695).

18875093 is an equidigital number, since it uses as much as digits as its factorization.

18875093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 18875093 is about 4344.5475023298. The cubic root of 18875093 is about 266.2541383709.

The spelling of 18875093 in words is "eighteen million, eight hundred seventy-five thousand, ninety-three".