19947103 has 8 divisors (see below), whose sum is σ = 23040720. Its totient is φ = 17066880.

The previous prime is 19947101. The next prime is 19947113. The reversal of 19947103 is 30174991.

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

It is a cyclic number.

It is not a de Polignac number, because 19947103 - 2¹ = 19947101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19947101) 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, 53148 + ... + 53521.

It is an arithmetic number, because the mean of its divisors is an integer number (2880090).

Almost surely, 2^19947103 is an apocalyptic number.

19947103 is a deficient number, since it is larger than the sum of its proper divisors (3093617).

19947103 is a wasteful number, since it uses less digits than its factorization.

19947103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106697.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 19947103 is about 4466.2179749761. The cubic root of 19947103 is about 271.2022427903.

The spelling of 19947103 in words is "nineteen million, nine hundred forty-seven thousand, one hundred three".