10705985 has 4 divisors (see below), whose sum is σ = 12847188. Its totient is φ = 8564784.

The previous prime is 10705967. The next prime is 10705993. The reversal of 10705985 is 58950701.

It is a Cunningham number, because it is equal to 3272²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58950701 = 1933 ⋅30497.

It can be written as a sum of positive squares in 2 ways, for example, as 3857296 + 6848689 = 1964^2 + 2617^2 .

It is a cyclic number.

It is not a de Polignac number, because 10705985 - 2¹⁶ = 10640449 is a prime.

It is a super-2 number, since 2×10705985² = 229236229640450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070594 + ... + 1070603.

It is an arithmetic number, because the mean of its divisors is an integer number (3211797).

Almost surely, 2^10705985 is an apocalyptic number.

It is an amenable number.

10705985 is a deficient number, since it is larger than the sum of its proper divisors (2141203).

10705985 is an equidigital number, since it uses as much as digits as its factorization.

10705985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141202.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 10705985 is about 3272.0001528117. Note that the first 3 decimals coincide. The cubic root of 10705985 is about 220.3986230196.

The spelling of 10705985 in words is "ten million, seven hundred five thousand, nine hundred eighty-five".