18673713 has 32 divisors (see below), whose sum is σ = 29520000. Its totient is φ = 11632896.

The previous prime is 18673703. The next prime is 18673729. The reversal of 18673713 is 31737681.

It is not a de Polignac number, because 18673713 - 2¹⁴ = 18657329 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18673703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45453 + ... + 45861.

It is an arithmetic number, because the mean of its divisors is an integer number (922500).

Almost surely, 2^18673713 is an apocalyptic number.

It is an amenable number.

18673713 is a deficient number, since it is larger than the sum of its proper divisors (10846287).

18673713 is a wasteful number, since it uses less digits than its factorization.

18673713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 520 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 18673713 is about 4321.3091766269. The cubic root of 18673713 is about 265.3038546172.

The spelling of 18673713 in words is "eighteen million, six hundred seventy-three thousand, seven hundred thirteen".