16197903 has 12 divisors (see below), whose sum is σ = 24152128. Its totient is φ = 10450080.

The previous prime is 16197901. The next prime is 16197917. The reversal of 16197903 is 30979161.

It is not a de Polignac number, because 16197903 - 2¹ = 16197901 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 (16197901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28750 + ... + 29307.

Almost surely, 2^16197903 is an apocalyptic number.

16197903 is a deficient number, since it is larger than the sum of its proper divisors (7954225).

16197903 is a wasteful number, since it uses less digits than its factorization.

16197903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58094 (or 58091 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 16197903 is about 4024.6618491496. The cubic root of 16197903 is about 253.0188813521.

The spelling of 16197903 in words is "sixteen million, one hundred ninety-seven thousand, nine hundred three".