1069985 has 16 divisors (see below), whose sum is σ = 1545600. Its totient is φ = 694656.

The previous prime is 1069979. The next prime is 1069987. The reversal of 1069985 is 5899601.

1069985 = T₇₆ + T₇₇ + ... + T₁₈₉.

It is a cyclic number.

It is not a de Polignac number, because 1069985 - 2⁶ = 1069921 is a prime.

It is a super-2 number, since 2×1069985² = 2289735800450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1069987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (96600).

2^1069985 is an apocalyptic number.

It is an amenable number.

1069985 is a deficient number, since it is larger than the sum of its proper divisors (475615).

1069985 is a wasteful number, since it uses less digits than its factorization.

1069985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 1069985 is about 1034.4007927298. The cubic root of 1069985 is about 102.2804342265.

The spelling of 1069985 in words is "one million, sixty-nine thousand, nine hundred eighty-five".