9687761693 has 4 divisors (see below), whose sum is σ = 9758475420. Its totient is φ = 9617047968.

The previous prime is 9687761687. The next prime is 9687761701. The reversal of 9687761693 is 3961677869.

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 8103960484 + 1583801209 = 90022^2 + 39797^2 .

It is a cyclic number.

It is not a de Polignac number, because 9687761693 - 2²⁰ = 9686713117 is a prime.

It is a super-3 number, since 3×9687761693³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9687701693) 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, 35356658 + ... + 35356931.

It is an arithmetic number, because the mean of its divisors is an integer number (2439618855).

Almost surely, 2^9687761693 is an apocalyptic number.

It is an amenable number.

9687761693 is a deficient number, since it is larger than the sum of its proper divisors (70713727).

9687761693 is a wasteful number, since it uses less digits than its factorization.

9687761693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70713726.

The product of its digits is 20575296, while the sum is 62.

The square root of 9687761693 is about 98426.4278179392. The cubic root of 9687761693 is about 2131.7739410125.

The spelling of 9687761693 in words is "nine billion, six hundred eighty-seven million, seven hundred sixty-one thousand, six hundred ninety-three".