16715897 has 16 divisors (see below), whose sum is σ = 19038912. Its totient is φ = 14541120.

The previous prime is 16715887. The next prime is 16715927. The reversal of 16715897 is 79851761.

It is not a de Polignac number, because 16715897 - 2²⁰ = 15667321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16715837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26963 + ... + 27575.

It is an arithmetic number, because the mean of its divisors is an integer number (1189932).

Almost surely, 2^16715897 is an apocalyptic number.

It is an amenable number.

16715897 is a deficient number, since it is larger than the sum of its proper divisors (2323015).

16715897 is a wasteful number, since it uses less digits than its factorization.

16715897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 105840, while the sum is 44.

The square root of 16715897 is about 4088.5079185444. The cubic root of 16715897 is about 255.6877346957.

The spelling of 16715897 in words is "sixteen million, seven hundred fifteen thousand, eight hundred ninety-seven".