69727685 has 4 divisors (see below), whose sum is σ = 83673228. Its totient is φ = 55782144.

The previous prime is 69727681. The next prime is 69727709. The reversal of 69727685 is 58672796.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11464996 + 58262689 = 3386^2 + 7633^2 .

It is a cyclic number.

It is not a de Polignac number, because 69727685 - 2² = 69727681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69727681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6972764 + ... + 6972773.

It is an arithmetic number, because the mean of its divisors is an integer number (20918307).

Almost surely, 2^69727685 is an apocalyptic number.

It is an amenable number.

69727685 is a deficient number, since it is larger than the sum of its proper divisors (13945543).

69727685 is a wasteful number, since it uses less digits than its factorization.

69727685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13945542.

The product of its digits is 1270080, while the sum is 50.

The square root of 69727685 is about 8350.3104732698. The cubic root of 69727685 is about 411.5934127079.

It can be divided in two parts, 697 and 27685, that added together give a palindrome (28382).

The spelling of 69727685 in words is "sixty-nine million, seven hundred twenty-seven thousand, six hundred eighty-five".