18313327 has 2 divisors, whose sum is σ = 18313328. Its totient is φ = 18313326.

The previous prime is 18313307. The next prime is 18313331. The reversal of 18313327 is 72331381.

It is a strong prime.

It is an emirp because it is prime and its reverse (72331381) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18313327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18313295 and 18313304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18313307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9156663 + 9156664.

It is an arithmetic number, because the mean of its divisors is an integer number (9156664).

Almost surely, 2^18313327 is an apocalyptic number.

18313327 is a deficient number, since it is larger than the sum of its proper divisors (1).

18313327 is an equidigital number, since it uses as much as digits as its factorization.

18313327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 18313327 is about 4279.4073187767. The cubic root of 18313327 is about 263.5860468128.

The spelling of 18313327 in words is "eighteen million, three hundred thirteen thousand, three hundred twenty-seven".