18069983 has 2 divisors, whose sum is σ = 18069984. Its totient is φ = 18069982.

The previous prime is 18069917. The next prime is 18070001. The reversal of 18069983 is 38996081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18069983 - 2¹⁴ = 18053599 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18059983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9034991 + 9034992.

It is an arithmetic number, because the mean of its divisors is an integer number (9034992).

Almost surely, 2^18069983 is an apocalyptic number.

18069983 is a deficient number, since it is larger than the sum of its proper divisors (1).

18069983 is an equidigital number, since it uses as much as digits as its factorization.

18069983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 18069983 is about 4250.8802617811. The cubic root of 18069983 is about 262.4133434293.

The spelling of 18069983 in words is "eighteen million, sixty-nine thousand, nine hundred eighty-three".