16387849 has 4 divisors (see below), whose sum is σ = 16470400. Its totient is φ = 16305300.

The previous prime is 16387841. The next prime is 16387853. The reversal of 16387849 is 94878361.

It is a happy number.

16387849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94878361 = 89 ⋅1066049.

It is a cyclic number.

It is not a de Polignac number, because 16387849 - 2³ = 16387841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16387799 and 16387808.

It is not an unprimeable number, because it can be changed into a prime (16387841) 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, 40977 + ... + 41374.

It is an arithmetic number, because the mean of its divisors is an integer number (4117600).

Almost surely, 2^16387849 is an apocalyptic number.

It is an amenable number.

16387849 is a deficient number, since it is larger than the sum of its proper divisors (82551).

16387849 is an equidigital number, since it uses as much as digits as its factorization.

16387849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82550.

The product of its digits is 290304, while the sum is 46.

The square root of 16387849 is about 4048.1908304822. The cubic root of 16387849 is about 254.0040557767.

The spelling of 16387849 in words is "sixteen million, three hundred eighty-seven thousand, eight hundred forty-nine".