18867941 has 4 divisors (see below), whose sum is σ = 18900672. Its totient is φ = 18835212.

The previous prime is 18867923. The next prime is 18867967. The reversal of 18867941 is 14976881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14976881 = 17 ⋅880993.

It is a cyclic number.

It is not a de Polignac number, because 18867941 - 2¹⁴ = 18851557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18867892 and 18867901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18867241) 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, 15485 + ... + 16658.

It is an arithmetic number, because the mean of its divisors is an integer number (4725168).

Almost surely, 2^18867941 is an apocalyptic number.

It is an amenable number.

18867941 is a deficient number, since it is larger than the sum of its proper divisors (32731).

18867941 is an equidigital number, since it uses as much as digits as its factorization.

18867941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32730.

The product of its digits is 96768, while the sum is 44.

The square root of 18867941 is about 4343.7243236651. The cubic root of 18867941 is about 266.2205051562.

The spelling of 18867941 in words is "eighteen million, eight hundred sixty-seven thousand, nine hundred forty-one".