1069708985 has 4 divisors (see below), whose sum is σ = 1283650788. Its totient is φ = 855767184.

The previous prime is 1069708973. The next prime is 1069709009. The reversal of 1069708985 is 5898079601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5898079601 = 32537 ⋅181273.

It can be written as a sum of positive squares in 2 ways, for example, as 475763344 + 593945641 = 21812^2 + 24371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1069708985 - 2⁶ = 1069708921 is a prime.

It is a super-2 number, since 2×1069708985² = 2288554625179460450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106970894 + ... + 106970903.

It is an arithmetic number, because the mean of its divisors is an integer number (320912697).

Almost surely, 2^1069708985 is an apocalyptic number.

It is an amenable number.

1069708985 is a deficient number, since it is larger than the sum of its proper divisors (213941803).

1069708985 is an equidigital number, since it uses as much as digits as its factorization.

1069708985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213941802.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 1069708985 is about 32706.4058710217. The cubic root of 1069708985 is about 1022.7163866340.

The spelling of 1069708985 in words is "one billion, sixty-nine million, seven hundred eight thousand, nine hundred eighty-five".