16071898 has 4 divisors (see below), whose sum is σ = 24107850. Its totient is φ = 8035948.

The previous prime is 16071889. The next prime is 16071901. The reversal of 16071898 is 89817061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13860729 + 2211169 = 3723^2 + 1487^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16071898.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4017973 + ... + 4017976.

Almost surely, 2^16071898 is an apocalyptic number.

16071898 is a deficient number, since it is larger than the sum of its proper divisors (8035952).

16071898 is an equidigital number, since it uses as much as digits as its factorization.

16071898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035951.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 16071898 is about 4008.9771762882. The cubic root of 16071898 is about 252.3610868755.

The spelling of 16071898 in words is "sixteen million, seventy-one thousand, eight hundred ninety-eight".