105309898 has 16 divisors (see below), whose sum is σ = 161631936. Its totient is φ = 51446080.

The previous prime is 105309877. The next prime is 105309931. The reversal of 105309898 is 898903501.

It is a super-2 number, since 2×105309898² = 22180349233540808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12765 + ... + 19327.

It is an arithmetic number, because the mean of its divisors is an integer number (10101996).

Almost surely, 2^105309898 is an apocalyptic number.

105309898 is a deficient number, since it is larger than the sum of its proper divisors (56322038).

105309898 is a wasteful number, since it uses less digits than its factorization.

105309898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 105309898 is about 10262.0610990190. The cubic root of 105309898 is about 472.2330703995.

The spelling of 105309898 in words is "one hundred five million, three hundred nine thousand, eight hundred ninety-eight".