16087873 has 4 divisors (see below), whose sum is σ = 16129620. Its totient is φ = 16046128.

The previous prime is 16087871. The next prime is 16087913. The reversal of 16087873 is 37878061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37878061 = 13 ⋅2913697.

It can be written as a sum of positive squares in 2 ways, for example, as 7225344 + 8862529 = 2688^2 + 2977^2 .

It is a cyclic number.

It is not a de Polignac number, because 16087873 - 2¹ = 16087871 is a prime.

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 Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16087871) 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, 20290 + ... + 21067.

It is an arithmetic number, because the mean of its divisors is an integer number (4032405).

Almost surely, 2^16087873 is an apocalyptic number.

It is an amenable number.

16087873 is a deficient number, since it is larger than the sum of its proper divisors (41747).

16087873 is an equidigital number, since it uses as much as digits as its factorization.

16087873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41746.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 16087873 is about 4010.9690848971. The cubic root of 16087873 is about 252.4446723856. Note that the first 3 decimals are identical.

The spelling of 16087873 in words is "sixteen million, eighty-seven thousand, eight hundred seventy-three".