105563898 has 40 divisors (see below), whose sum is σ = 258049440. Its totient is φ = 31988520.

The previous prime is 105563891. The next prime is 105563903. The reversal of 105563898 is 898365501.

105563898 is a `hidden beast` number, since 1 + 0 + 5 + 5 + 638 + 9 + 8 = 666.

It is a super-2 number, since 2×105563898² = 22287473121908808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105563891) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27838 + ... + 31401.

It is an arithmetic number, because the mean of its divisors is an integer number (6451236).

Almost surely, 2^105563898 is an apocalyptic number.

105563898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

105563898 is an abundant number, since it is smaller than the sum of its proper divisors (152485542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105563898 is a wasteful number, since it uses less digits than its factorization.

105563898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59264 (or 59255 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 105563898 is about 10274.4293272181. The cubic root of 105563898 is about 472.6124297838.

The spelling of 105563898 in words is "one hundred five million, five hundred sixty-three thousand, eight hundred ninety-eight".