16287005 has 16 divisors (see below), whose sum is σ = 22550400. Its totient is φ = 11061312.

The previous prime is 16287001. The next prime is 16287017. The reversal of 16287005 is 50078261.

16287005 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16287005 - 2² = 16287001 is a prime.

16287005 is strictly pandigital in base 8.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16287001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1571 + ... + 5919.

It is an arithmetic number, because the mean of its divisors is an integer number (1409400).

Almost surely, 2^16287005 is an apocalyptic number.

It is an amenable number.

16287005 is a deficient number, since it is larger than the sum of its proper divisors (6263395).

16287005 is a wasteful number, since it uses less digits than its factorization.

16287005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 16287005 is about 4035.7161694054. The cubic root of 16287005 is about 253.4819716751.

The spelling of 16287005 in words is "sixteen million, two hundred eighty-seven thousand, five".