16587641 has 8 divisors (see below), whose sum is σ = 19014720. Its totient is φ = 14174928.

The previous prime is 16587629. The next prime is 16587643. The reversal of 16587641 is 14678561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16587641 - 2¹⁰ = 16586617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16587595 and 16587604.

It is not an unprimeable number, because it can be changed into a prime (16587643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986 + ... + 5843.

It is an arithmetic number, because the mean of its divisors is an integer number (2376840).

Almost surely, 2^16587641 is an apocalyptic number.

It is an amenable number.

16587641 is a deficient number, since it is larger than the sum of its proper divisors (2427079).

16587641 is an equidigital number, since it uses as much as digits as its factorization.

16587641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7183.

The product of its digits is 40320, while the sum is 38.

The square root of 16587641 is about 4072.7927764619. The cubic root of 16587641 is about 255.0321169339.

The spelling of 16587641 in words is "sixteen million, five hundred eighty-seven thousand, six hundred forty-one".