18428703 has 8 divisors (see below), whose sum is σ = 24623616. Its totient is φ = 12259800.

The previous prime is 18428633. The next prime is 18428713. The reversal of 18428703 is 30782481.

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

It is not a de Polignac number, because 18428703 - 2¹⁰ = 18427679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18428713) 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 7 ways as a sum of consecutive naturals, for example, 4783 + ... + 7728.

It is an arithmetic number, because the mean of its divisors is an integer number (3077952).

Almost surely, 2^18428703 is an apocalyptic number.

18428703 is a deficient number, since it is larger than the sum of its proper divisors (6194913).

18428703 is a wasteful number, since it uses less digits than its factorization.

18428703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 18428703 is about 4292.8665248293. The cubic root of 18428703 is about 264.1384288941.

The spelling of 18428703 in words is "eighteen million, four hundred twenty-eight thousand, seven hundred three".