16256863 has 4 divisors (see below), whose sum is σ = 18579280. Its totient is φ = 13934448.

The previous prime is 16256843. The next prime is 16256873. The reversal of 16256863 is 36865261.

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

It is a cyclic number.

It is not a de Polignac number, because 16256863 - 2⁹ = 16256351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16256833) 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, 1161198 + ... + 1161211.

It is an arithmetic number, because the mean of its divisors is an integer number (4644820).

Almost surely, 2^16256863 is an apocalyptic number.

16256863 is a deficient number, since it is larger than the sum of its proper divisors (2322417).

16256863 is an equidigital number, since it uses as much as digits as its factorization.

16256863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322416.

The product of its digits is 51840, while the sum is 37.

The square root of 16256863 is about 4031.9800346728. The cubic root of 16256863 is about 253.3255039516.

The spelling of 16256863 in words is "sixteen million, two hundred fifty-six thousand, eight hundred sixty-three".