105780417 has 4 divisors (see below), whose sum is σ = 141040560. Its totient is φ = 70520276.

The previous prime is 105780413. The next prime is 105780439. The reversal of 105780417 is 714087501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 714087501 = 3 ⋅238029167.

It is a cyclic number.

It is not a de Polignac number, because 105780417 - 2² = 105780413 is a prime.

It is a super-2 number, since 2×105780417² = 22378993241387778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105780413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17630067 + ... + 17630072.

It is an arithmetic number, because the mean of its divisors is an integer number (35260140).

Almost surely, 2^105780417 is an apocalyptic number.

It is an amenable number.

105780417 is a deficient number, since it is larger than the sum of its proper divisors (35260143).

105780417 is an equidigital number, since it uses as much as digits as its factorization.

105780417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35260142.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 105780417 is about 10284.9607194194. The cubic root of 105780417 is about 472.9353295961.

The spelling of 105780417 in words is "one hundred five million, seven hundred eighty thousand, four hundred seventeen".