18914323 has 4 divisors (see below), whose sum is σ = 18923040. Its totient is φ = 18905608.

The previous prime is 18914299. The next prime is 18914327. The reversal of 18914323 is 32341981.

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: 32341981 = 7 ⋅4620283.

It is a cyclic number.

It is not a de Polignac number, because 18914323 - 2¹³ = 18906131 is a prime.

It is a super-2 number, since 2×18914323² = 715503229096658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18914327) 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, 1761 + ... + 6397.

It is an arithmetic number, because the mean of its divisors is an integer number (4730760).

Almost surely, 2^18914323 is an apocalyptic number.

18914323 is a deficient number, since it is larger than the sum of its proper divisors (8717).

18914323 is an equidigital number, since it uses as much as digits as its factorization.

18914323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8716.

The product of its digits is 5184, while the sum is 31.

The square root of 18914323 is about 4349.0600133822. The cubic root of 18914323 is about 266.4384716223.

The spelling of 18914323 in words is "eighteen million, nine hundred fourteen thousand, three hundred twenty-three".