16071897 has 4 divisors (see below), whose sum is σ = 21429200. Its totient is φ = 10714596.

The previous prime is 16071889. The next prime is 16071901. The reversal of 16071897 is 79817061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16071897 - 2³ = 16071889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16072897) 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, 2678647 + ... + 2678652.

It is an arithmetic number, because the mean of its divisors is an integer number (5357300).

Almost surely, 2^16071897 is an apocalyptic number.

It is an amenable number.

16071897 is a deficient number, since it is larger than the sum of its proper divisors (5357303).

16071897 is an equidigital number, since it uses as much as digits as its factorization.

16071897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357302.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 16071897 is about 4008.9770515681. The cubic root of 16071897 is about 252.3610816415.

The spelling of 16071897 in words is "sixteen million, seventy-one thousand, eight hundred ninety-seven".