16716403 has 4 divisors (see below), whose sum is σ = 18236088. Its totient is φ = 15196720.

The previous prime is 16716373. The next prime is 16716407. The reversal of 16716403 is 30461761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30461761 = 11 ⋅2769251.

It is not a de Polignac number, because 16716403 - 2²¹ = 14619251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16716407) 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, 759826 + ... + 759847.

It is an arithmetic number, because the mean of its divisors is an integer number (4559022).

Almost surely, 2^16716403 is an apocalyptic number.

16716403 is a deficient number, since it is larger than the sum of its proper divisors (1519685).

16716403 is a wasteful number, since it uses less digits than its factorization.

16716403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519684.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 16716403 is about 4088.5697988416. The cubic root of 16716403 is about 255.6903146089.

The spelling of 16716403 in words is "sixteen million, seven hundred sixteen thousand, four hundred three".