69785065 has 20 divisors (see below), whose sum is σ = 97710084. Its totient is φ = 47844384.

The previous prime is 69785039. The next prime is 69785069. The reversal of 69785065 is 56058796.

It can be written as a sum of positive squares in 2 ways, for example, as 36917776 + 32867289 = 6076^2 + 5733^2 .

It is not a de Polignac number, because 69785065 - 2⁵ = 69785033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69785069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9099 + ... + 14911.

Almost surely, 2^69785065 is an apocalyptic number.

It is an amenable number.

69785065 is a deficient number, since it is larger than the sum of its proper divisors (27925019).

69785065 is an frugal number, since it uses more digits than its factorization.

69785065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 69785065 is about 8353.7455671094. The cubic root of 69785065 is about 411.7062839663.

The spelling of 69785065 in words is "sixty-nine million, seven hundred eighty-five thousand, sixty-five".