105798647 has 4 divisors (see below), whose sum is σ = 106143576. Its totient is φ = 105453720.

The previous prime is 105798601. The next prime is 105798673. The reversal of 105798647 is 746897501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746897501 = 7 ⋅106699643.

It is a cyclic number.

It is not a de Polignac number, because 105798647 - 2⁸ = 105798391 is a prime.

It is a super-2 number, since 2×105798647² = 22386707414061218, 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 (105798677) 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, 172004 + ... + 172617.

It is an arithmetic number, because the mean of its divisors is an integer number (26535894).

Almost surely, 2^105798647 is an apocalyptic number.

105798647 is a deficient number, since it is larger than the sum of its proper divisors (344929).

105798647 is an equidigital number, since it uses as much as digits as its factorization.

105798647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344928.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 105798647 is about 10285.8469267241. The cubic root of 105798647 is about 472.9624963001.

The spelling of 105798647 in words is "one hundred five million, seven hundred ninety-eight thousand, six hundred forty-seven".