18854093 has 2 divisors, whose sum is σ = 18854094. Its totient is φ = 18854092.

The previous prime is 18854051. The next prime is 18854117. The reversal of 18854093 is 39045881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10484644 + 8369449 = 3238^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 18854093 - 2⁶ = 18854029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18854993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9427046 + 9427047.

It is an arithmetic number, because the mean of its divisors is an integer number (9427047).

Almost surely, 2^18854093 is an apocalyptic number.

It is an amenable number.

18854093 is a deficient number, since it is larger than the sum of its proper divisors (1).

18854093 is an equidigital number, since it uses as much as digits as its factorization.

18854093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 18854093 is about 4342.1300072660. The cubic root of 18854093 is about 266.1553589585.

The spelling of 18854093 in words is "eighteen million, eight hundred fifty-four thousand, ninety-three".