18730799 has 2 divisors, whose sum is σ = 18730800. Its totient is φ = 18730798.

The previous prime is 18730793. The next prime is 18730801. The reversal of 18730799 is 99703781.

18730799 is nontrivially palindromic in base 7.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18730799 - 2¹² = 18726703 is a prime.

Together with 18730801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18730793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9365399 + 9365400.

It is an arithmetic number, because the mean of its divisors is an integer number (9365400).

Almost surely, 2^18730799 is an apocalyptic number.

18730799 is a deficient number, since it is larger than the sum of its proper divisors (1).

18730799 is an equidigital number, since it uses as much as digits as its factorization.

18730799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 18730799 is about 4327.9093105101. The cubic root of 18730799 is about 265.5739264018.

The spelling of 18730799 in words is "eighteen million, seven hundred thirty thousand, seven hundred ninety-nine".