9689390772 has 24 divisors (see below), whose sum is σ = 22638000000. Its totient is φ = 3225593856.

The previous prime is 9689390743. The next prime is 9689390827. The reversal of 9689390772 is 2770939869.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515772 + ... + 534227.

It is an arithmetic number, because the mean of its divisors is an integer number (943250000).

Almost surely, 2^9689390772 is an apocalyptic number.

It is an amenable number.

9689390772 is an abundant number, since it is smaller than the sum of its proper divisors (12948609228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9689390772 is a wasteful number, since it uses less digits than its factorization.

9689390772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050775 (or 1050773 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 60.

The square root of 9689390772 is about 98434.7030878846. The cubic root of 9689390772 is about 2131.8934262499.

The spelling of 9689390772 in words is "nine billion, six hundred eighty-nine million, three hundred ninety thousand, seven hundred seventy-two".