105668857 has 4 divisors (see below), whose sum is σ = 120764416. Its totient is φ = 90573300.

The previous prime is 105668839. The next prime is 105668869. The reversal of 105668857 is 758866501.

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.

It is a cyclic number.

It is not a de Polignac number, because 105668857 - 2⁷ = 105668729 is a prime.

It is a super-2 number, since 2×105668857² = 22331814679372898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105668807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7547769 + ... + 7547782.

It is an arithmetic number, because the mean of its divisors is an integer number (30191104).

Almost surely, 2^105668857 is an apocalyptic number.

It is an amenable number.

105668857 is a deficient number, since it is larger than the sum of its proper divisors (15095559).

105668857 is an equidigital number, since it uses as much as digits as its factorization.

105668857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15095558.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 105668857 is about 10279.5358358245. The cubic root of 105668857 is about 472.7690126617.

The spelling of 105668857 in words is "one hundred five million, six hundred sixty-eight thousand, eight hundred fifty-seven".