106857905 has 32 divisors (see below), whose sum is σ = 160489728. Its totient is φ = 66355200.

The previous prime is 106857901. The next prime is 106857929. The reversal of 106857905 is 509758601.

It is not a de Polignac number, because 106857905 - 2² = 106857901 is a prime.

It is a super-2 number, since 2×106857905² = 22837223721978050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106857901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166385 + ... + 167025.

It is an arithmetic number, because the mean of its divisors is an integer number (5015304).

Almost surely, 2^106857905 is an apocalyptic number.

It is an amenable number.

106857905 is a deficient number, since it is larger than the sum of its proper divisors (53631823).

106857905 is a wasteful number, since it uses less digits than its factorization.

106857905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 106857905 is about 10337.2097299029. The cubic root of 106857905 is about 474.5356940329.

The spelling of 106857905 in words is "one hundred six million, eight hundred fifty-seven thousand, nine hundred five".