23116863 has 64 divisors (see below), whose sum is σ = 42393600. Its totient is φ = 10834560.

The previous prime is 23116861. The next prime is 23116867. The reversal of 23116863 is 36861132.

It is a Cunningham number, because it is equal to 4808²-1.

It is not a de Polignac number, because 23116863 - 2¹ = 23116861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23116863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23116861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100833 + ... + 101061.

It is an arithmetic number, because the mean of its divisors is an integer number (662400).

Almost surely, 2^23116863 is an apocalyptic number.

23116863 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23116863 is a deficient number, since it is larger than the sum of its proper divisors (19276737).

23116863 is a wasteful number, since it uses less digits than its factorization.

23116863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its digits is 5184, while the sum is 30.

The square root of 23116863 is about 4807.9998960067. Note that the first 3 decimals coincide. The cubic root of 23116863 is about 284.8675407858.

Adding to 23116863 its reverse (36861132), we get a palindrome (59977995).

It can be divided in two parts, 23 and 116863, that added together give a triangular number (116886 = T₄₈₃).

The spelling of 23116863 in words is "twenty-three million, one hundred sixteen thousand, eight hundred sixty-three".