18353323 has 2 divisors, whose sum is σ = 18353324. Its totient is φ = 18353322.

The previous prime is 18353299. The next prime is 18353327. The reversal of 18353323 is 32335381.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18353323 - 2²¹ = 16256171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18353291 and 18353300.

It is not a weakly prime, because it can be changed into another prime (18353327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9176661 + 9176662.

It is an arithmetic number, because the mean of its divisors is an integer number (9176662).

Almost surely, 2^18353323 is an apocalyptic number.

18353323 is a deficient number, since it is larger than the sum of its proper divisors (1).

18353323 is an equidigital number, since it uses as much as digits as its factorization.

18353323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 18353323 is about 4284.0778470985. The cubic root of 18353323 is about 263.7777964610. Note that the first 4 decimals are identical.

The spelling of 18353323 in words is "eighteen million, three hundred fifty-three thousand, three hundred twenty-three".