105408863 has 4 divisors (see below), whose sum is σ = 120467280. Its totient is φ = 90350448.

The previous prime is 105408811. The next prime is 105408887. The reversal of 105408863 is 368804501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368804501 = 13 ⋅28369577.

It is a cyclic number.

It is not a de Polignac number, because 105408863 - 2⁸ = 105408607 is a prime.

It is a super-2 number, since 2×105408863² = 22222056797905538, which contains 22 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 (105408763) 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, 7529198 + ... + 7529211.

It is an arithmetic number, because the mean of its divisors is an integer number (30116820).

Almost surely, 2^105408863 is an apocalyptic number.

105408863 is a deficient number, since it is larger than the sum of its proper divisors (15058417).

105408863 is an equidigital number, since it uses as much as digits as its factorization.

105408863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15058416.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 105408863 is about 10266.8818538055. The cubic root of 105408863 is about 472.3809511297.

The spelling of 105408863 in words is "one hundred five million, four hundred eight thousand, eight hundred sixty-three".