18376069 has 2 divisors, whose sum is σ = 18376070. Its totient is φ = 18376068.

The previous prime is 18376051. The next prime is 18376123. The reversal of 18376069 is 96067381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 5688225 = 3562^2 + 2385^2 .

It is an emirp because it is prime and its reverse (96067381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18376069 - 2⁷ = 18375941 is a prime.

It is a super-2 number, since 2×18376069² = 675359823785522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18376049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9188034 + 9188035.

It is an arithmetic number, because the mean of its divisors is an integer number (9188035).

Almost surely, 2^18376069 is an apocalyptic number.

It is an amenable number.

18376069 is a deficient number, since it is larger than the sum of its proper divisors (1).

18376069 is an equidigital number, since it uses as much as digits as its factorization.

18376069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 18376069 is about 4286.7317387492. The cubic root of 18376069 is about 263.8867215646.

The spelling of 18376069 in words is "eighteen million, three hundred seventy-six thousand, sixty-nine".