18808703 has 2 divisors, whose sum is σ = 18808704. Its totient is φ = 18808702.

The previous prime is 18808697. The next prime is 18808721. The reversal of 18808703 is 30780881.

It is a weak prime.

It is an emirp because it is prime and its reverse (30780881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18808703 - 2⁶ = 18808639 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_1199618 and since 18808703 and 1199618 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18808753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9404351 + 9404352.

It is an arithmetic number, because the mean of its divisors is an integer number (9404352).

Almost surely, 2^18808703 is an apocalyptic number.

18808703 is a deficient number, since it is larger than the sum of its proper divisors (1).

18808703 is an equidigital number, since it uses as much as digits as its factorization.

18808703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 18808703 is about 4336.9001602527. The cubic root of 18808703 is about 265.9416034395.

The spelling of 18808703 in words is "eighteen million, eight hundred eight thousand, seven hundred three".