16408487 has 4 divisors (see below), whose sum is σ = 16808736. Its totient is φ = 16008240.

The previous prime is 16408481. The next prime is 16408493. The reversal of 16408487 is 78480461.

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

It is an interprime number because it is at equal distance from previous prime (16408481) and next prime (16408493).

It is a cyclic number.

It is not a de Polignac number, because 16408487 - 2¹⁶ = 16342951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16408487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16408481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200063 + ... + 200144.

It is an arithmetic number, because the mean of its divisors is an integer number (4202184).

Almost surely, 2^16408487 is an apocalyptic number.

16408487 is a deficient number, since it is larger than the sum of its proper divisors (400249).

16408487 is an equidigital number, since it uses as much as digits as its factorization.

16408487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400248.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 16408487 is about 4050.7390683676. The cubic root of 16408487 is about 254.1106375228.

The spelling of 16408487 in words is "sixteen million, four hundred eight thousand, four hundred eighty-seven".