9697074661 has 4 divisors (see below), whose sum is σ = 9720784300. Its totient is φ = 9673365024.

The previous prime is 9697074659. The next prime is 9697074677. The reversal of 9697074661 is 1664707969.

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 8518182436 + 1178892225 = 92294^2 + 34335^2 .

It is a cyclic number.

It is not a de Polignac number, because 9697074661 - 2¹ = 9697074659 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 (9697074461) 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, 11854206 + ... + 11855023.

It is an arithmetic number, because the mean of its divisors is an integer number (2430196075).

Almost surely, 2^9697074661 is an apocalyptic number.

It is an amenable number.

9697074661 is a deficient number, since it is larger than the sum of its proper divisors (23709639).

9697074661 is a wasteful number, since it uses less digits than its factorization.

9697074661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23709638.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The square root of 9697074661 is about 98473.7257394073. The cubic root of 9697074661 is about 2132.4568226670.

The spelling of 9697074661 in words is "nine billion, six hundred ninety-seven million, seventy-four thousand, six hundred sixty-one".