18806798 has 8 divisors (see below), whose sum is σ = 28240608. Its totient is φ = 9393264.

The previous prime is 18806797. The next prime is 18806813. The reversal of 18806798 is 89760881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18806797) 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 in 3 ways as a sum of consecutive naturals, for example, 2486 + ... + 6617.

It is an arithmetic number, because the mean of its divisors is an integer number (3530076).

Almost surely, 2^18806798 is an apocalyptic number.

18806798 is a deficient number, since it is larger than the sum of its proper divisors (9433810).

18806798 is a wasteful number, since it uses less digits than its factorization.

18806798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 18806798 is about 4336.6805277770. The cubic root of 18806798 is about 265.9326246907.

The spelling of 18806798 in words is "eighteen million, eight hundred six thousand, seven hundred ninety-eight".