16256887 has 4 divisors (see below), whose sum is σ = 16265176. Its totient is φ = 16248600.

The previous prime is 16256873. The next prime is 16256953. The reversal of 16256887 is 78865261.

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, and also an emirpimes, since its reverse is a distinct semiprime: 78865261 = 17 ⋅4639133.

It is a cyclic number.

It is not a de Polignac number, because 16256887 - 2⁷ = 16256759 is a prime.

It is a super-3 number, since 3×16256887³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16256087) 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, 637 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (4066294).

Almost surely, 2^16256887 is an apocalyptic number.

16256887 is a deficient number, since it is larger than the sum of its proper divisors (8289).

16256887 is an equidigital number, since it uses as much as digits as its factorization.

16256887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8288.

The product of its digits is 161280, while the sum is 43.

The square root of 16256887 is about 4031.9830108769. The cubic root of 16256887 is about 253.3256286130.

The spelling of 16256887 in words is "sixteen million, two hundred fifty-six thousand, eight hundred eighty-seven".