16285287 has 4 divisors (see below), whose sum is σ = 21713720. Its totient is φ = 10856856.

The previous prime is 16285279. The next prime is 16285307. The reversal of 16285287 is 78258261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78258261 = 3 ⋅26086087.

It is not a de Polignac number, because 16285287 - 2³ = 16285279 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 2 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16285237) 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, 2714212 + ... + 2714217.

It is an arithmetic number, because the mean of its divisors is an integer number (5428430).

Almost surely, 2^16285287 is an apocalyptic number.

16285287 is a deficient number, since it is larger than the sum of its proper divisors (5428433).

16285287 is an equidigital number, since it uses as much as digits as its factorization.

16285287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428432.

The product of its digits is 53760, while the sum is 39.

The square root of 16285287 is about 4035.5033143339. The cubic root of 16285287 is about 253.4730586932.

The spelling of 16285287 in words is "sixteen million, two hundred eighty-five thousand, two hundred eighty-seven".