106920785 has 8 divisors (see below), whose sum is σ = 128362920. Its totient is φ = 85497984.

The previous prime is 106920757. The next prime is 106920791. The reversal of 106920785 is 587029601.

It can be written as a sum of positive squares in 4 ways, for example, as 5958481 + 100962304 = 2441^2 + 10048^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106920785 - 2⁸ = 106920529 is a prime.

It is a super-2 number, since 2×106920785² = 22864108530032450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14051 + ... + 20279.

It is an arithmetic number, because the mean of its divisors is an integer number (16045365).

Almost surely, 2^106920785 is an apocalyptic number.

It is an amenable number.

106920785 is a deficient number, since it is larger than the sum of its proper divisors (21442135).

106920785 is an equidigital number, since it uses as much as digits as its factorization.

106920785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 106920785 is about 10340.2507222988. The cubic root of 106920785 is about 474.6287551672.

The spelling of 106920785 in words is "one hundred six million, nine hundred twenty thousand, seven hundred eighty-five".