18710973 has 16 divisors (see below), whose sum is σ = 27912000. Its totient is φ = 12387600.

The previous prime is 18710971. The next prime is 18710981. The reversal of 18710973 is 37901781.

It is not a de Polignac number, because 18710973 - 2¹ = 18710971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18710971) 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 15 ways as a sum of consecutive naturals, for example, 1698 + ... + 6348.

It is an arithmetic number, because the mean of its divisors is an integer number (1744500).

Almost surely, 2^18710973 is an apocalyptic number.

It is an amenable number.

18710973 is a deficient number, since it is larger than the sum of its proper divisors (9201027).

18710973 is a wasteful number, since it uses less digits than its factorization.

18710973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809 (or 4803 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 18710973 is about 4325.6182217112. The cubic root of 18710973 is about 265.4801925917.

It can be divided in two parts, 18710 and 973, that added together give a 9-th power (19683 = 3⁹).

The spelling of 18710973 in words is "eighteen million, seven hundred ten thousand, nine hundred seventy-three".