18085703 has 4 divisors (see below), whose sum is σ = 18099048. Its totient is φ = 18072360.

The previous prime is 18085699. The next prime is 18085709. The reversal of 18085703 is 30758081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30758081 = 5179 ⋅5939.

It is a cyclic number.

It is not a de Polignac number, because 18085703 - 2² = 18085699 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 18085703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18085709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4376 + ... + 7437.

It is an arithmetic number, because the mean of its divisors is an integer number (4524762).

Almost surely, 2^18085703 is an apocalyptic number.

18085703 is a deficient number, since it is larger than the sum of its proper divisors (13345).

18085703 is a wasteful number, since it uses less digits than its factorization.

18085703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13344.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 18085703 is about 4252.7288886079. The cubic root of 18085703 is about 262.4894169581.

The spelling of 18085703 in words is "eighteen million, eighty-five thousand, seven hundred three".