20080863 has 24 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 11639760.

The previous prime is 20080861. The next prime is 20080919. The reversal of 20080863 is 36808002.

It is not a de Polignac number, because 20080863 - 2¹ = 20080861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20080861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2133 + ... + 6686.

It is an arithmetic number, because the mean of its divisors is an integer number (1375920).

Almost surely, 2^20080863 is an apocalyptic number.

20080863 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20080863 is a deficient number, since it is larger than the sum of its proper divisors (12941217).

20080863 is a wasteful number, since it uses less digits than its factorization.

20080863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8859 (or 8856 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20080863 is about 4481.1675933846. The cubic root of 20080863 is about 271.8070963196.

Adding to 20080863 its reverse (36808002), we get a palindrome (56888865).

The spelling of 20080863 in words is "twenty million, eighty thousand, eight hundred sixty-three".