16327887 has 4 divisors (see below), whose sum is σ = 21770520. Its totient is φ = 10885256.

The previous prime is 16327877. The next prime is 16327891. The reversal of 16327887 is 78872361.

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

It is a cyclic number.

It is not a de Polignac number, because 16327887 - 2¹¹ = 16325839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16327877) 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, 2721312 + ... + 2721317.

It is an arithmetic number, because the mean of its divisors is an integer number (5442630).

Almost surely, 2^16327887 is an apocalyptic number.

16327887 is a deficient number, since it is larger than the sum of its proper divisors (5442633).

16327887 is an equidigital number, since it uses as much as digits as its factorization.

16327887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442632.

The product of its digits is 112896, while the sum is 42.

The square root of 16327887 is about 4040.7780191443. The cubic root of 16327887 is about 253.6938827752.

The spelling of 16327887 in words is "sixteen million, three hundred twenty-seven thousand, eight hundred eighty-seven".