18077441 has 2 divisors, whose sum is σ = 18077442. Its totient is φ = 18077440.

The previous prime is 18077429. The next prime is 18077447. The reversal of 18077441 is 14477081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 6105841 = 3460^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 18077441 - 2⁶ = 18077377 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18077398 and 18077407.

It is not a weakly prime, because it can be changed into another prime (18077447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9038720 + 9038721.

It is an arithmetic number, because the mean of its divisors is an integer number (9038721).

Almost surely, 2^18077441 is an apocalyptic number.

It is an amenable number.

18077441 is a deficient number, since it is larger than the sum of its proper divisors (1).

18077441 is an equidigital number, since it uses as much as digits as its factorization.

18077441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 18077441 is about 4251.7574013577. The cubic root of 18077441 is about 262.4494403002.

The spelling of 18077441 in words is "eighteen million, seventy-seven thousand, four hundred forty-one".