98405105 has 4 divisors (see below), whose sum is σ = 118086132. Its totient is φ = 78724080.

The previous prime is 98405101. The next prime is 98405107. The reversal of 98405105 is 50150489.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50150489 = 73 ⋅686993.

It can be written as a sum of positive squares in 2 ways, for example, as 16900321 + 81504784 = 4111^2 + 9028^2 .

It is not a de Polignac number, because 98405105 - 2² = 98405101 is a prime.

It is a super-2 number, since 2×98405105² = 19367129380122050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98405101) 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, 9840506 + ... + 9840515.

It is an arithmetic number, because the mean of its divisors is an integer number (29521533).

Almost surely, 2^98405105 is an apocalyptic number.

It is an amenable number.

98405105 is a deficient number, since it is larger than the sum of its proper divisors (19681027).

98405105 is a wasteful number, since it uses less digits than its factorization.

98405105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19681026.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 98405105 is about 9919.9347276078. The cubic root of 98405105 is about 461.6780316392.

The spelling of 98405105 in words is "ninety-eight million, four hundred five thousand, one hundred five".