16020863 has 4 divisors (see below), whose sum is σ = 16071720. Its totient is φ = 15970008.

The previous prime is 16020841. The next prime is 16020869. The reversal of 16020863 is 36802061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36802061 = 3539 ⋅10399.

It is a cyclic number.

It is not a de Polignac number, because 16020863 - 2⁸ = 16020607 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 (16020869) 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, 24953 + ... + 25586.

It is an arithmetic number, because the mean of its divisors is an integer number (4017930).

Almost surely, 2^16020863 is an apocalyptic number.

16020863 is a deficient number, since it is larger than the sum of its proper divisors (50857).

16020863 is an equidigital number, since it uses as much as digits as its factorization.

16020863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50856.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 16020863 is about 4002.6070254273. The cubic root of 16020863 is about 252.0936862963.

The spelling of 16020863 in words is "sixteen million, twenty thousand, eight hundred sixty-three".