16818379 has 2 divisors, whose sum is σ = 16818380. Its totient is φ = 16818378.

The previous prime is 16818377. The next prime is 16818383. The reversal of 16818379 is 97381861.

It is a weak prime.

It is an emirp because it is prime and its reverse (97381861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16818379 - 2¹ = 16818377 is a prime.

Together with 16818377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16818377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8409189 + 8409190.

It is an arithmetic number, because the mean of its divisors is an integer number (8409190).

Almost surely, 2^16818379 is an apocalyptic number.

16818379 is a deficient number, since it is larger than the sum of its proper divisors (1).

16818379 is an equidigital number, since it uses as much as digits as its factorization.

16818379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The square root of 16818379 is about 4101.0217019665. The cubic root of 16818379 is about 256.2091948510.

The spelling of 16818379 in words is "sixteen million, eight hundred eighteen thousand, three hundred seventy-nine".