18742703 has 8 divisors (see below), whose sum is σ = 21470208. Its totient is φ = 16027704.

The previous prime is 18742681. The next prime is 18742727. The reversal of 18742703 is 30724781.

It is a happy number.

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

It is not a de Polignac number, because 18742703 - 2¹⁶ = 18677167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18742703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18741703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350 + ... + 6132.

It is an arithmetic number, because the mean of its divisors is an integer number (2683776).

Almost surely, 2^18742703 is an apocalyptic number.

18742703 is a deficient number, since it is larger than the sum of its proper divisors (2727505).

18742703 is an equidigital number, since it uses as much as digits as its factorization.

18742703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 18742703 is about 4329.2843519455. The cubic root of 18742703 is about 265.6301746258.

The spelling of 18742703 in words is "eighteen million, seven hundred forty-two thousand, seven hundred three".