9689889802 has 8 divisors (see below), whose sum is σ = 14539133700. Its totient is φ = 4843511904.

The previous prime is 9689889793. The next prime is 9689889809. The reversal of 9689889802 is 2089889869.

It can be written as a sum of positive squares in 2 ways, for example, as 9563079681 + 126810121 = 97791^2 + 11261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (9689889809) 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, 708027 + ... + 721582.

Almost surely, 2^9689889802 is an apocalyptic number.

9689889802 is a deficient number, since it is larger than the sum of its proper divisors (4849243898).

9689889802 is a wasteful number, since it uses less digits than its factorization.

9689889802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433000.

The product of its (nonzero) digits is 35831808, while the sum is 67.

The square root of 9689889802 is about 98437.2378828256. The cubic root of 9689889802 is about 2131.9300250598.

Adding to 9689889802 its sum of digits (67), we get a palindrome (9689889869).

The spelling of 9689889802 in words is "nine billion, six hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred two".