16587049 has 4 divisors (see below), whose sum is σ = 16597764. Its totient is φ = 16576336.

The previous prime is 16587041. The next prime is 16587079. The reversal of 16587049 is 94078561.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14745600 + 1841449 = 3840^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 16587049 - 2³ = 16587041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16587041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542 + ... + 6295.

It is an arithmetic number, because the mean of its divisors is an integer number (4149441).

Almost surely, 2^16587049 is an apocalyptic number.

It is an amenable number.

16587049 is a deficient number, since it is larger than the sum of its proper divisors (10715).

16587049 is an equidigital number, since it uses as much as digits as its factorization.

16587049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10714.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 16587049 is about 4072.7200984109. The cubic root of 16587049 is about 255.0290829318.

The spelling of 16587049 in words is "sixteen million, five hundred eighty-seven thousand, forty-nine".