18076913 has 2 divisors, whose sum is σ = 18076914. Its totient is φ = 18076912.

The previous prime is 18076907. The next prime is 18076963. The reversal of 18076913 is 31967081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16581184 + 1495729 = 4072^2 + 1223^2 .

It is a cyclic number.

It is not a de Polignac number, because 18076913 - 2⁴ = 18076897 is a prime.

It is not a weakly prime, because it can be changed into another prime (18076963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9038456 + 9038457.

It is an arithmetic number, because the mean of its divisors is an integer number (9038457).

Almost surely, 2^18076913 is an apocalyptic number.

It is an amenable number.

18076913 is a deficient number, since it is larger than the sum of its proper divisors (1).

18076913 is an equidigital number, since it uses as much as digits as its factorization.

18076913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 18076913 is about 4251.6953089327. The cubic root of 18076913 is about 262.4468850961.

The spelling of 18076913 in words is "eighteen million, seventy-six thousand, nine hundred thirteen".