9697657 has 4 divisors (see below), whose sum is σ = 10208080. Its totient is φ = 9187236.

The previous prime is 9697603. The next prime is 9697691. The reversal of 9697657 is 7567969.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7567969 = 151 ⋅50119.

It is a cyclic number.

It is not a de Polignac number, because 9697657 - 2¹⁹ = 9173369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9697657.

It is not an unprimeable number, because it can be changed into a prime (9697957) 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, 255183 + ... + 255220.

It is an arithmetic number, because the mean of its divisors is an integer number (2552020).

Almost surely, 2^9697657 is an apocalyptic number.

It is an amenable number.

9697657 is a deficient number, since it is larger than the sum of its proper divisors (510423).

9697657 is a wasteful number, since it uses less digits than its factorization.

9697657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510422.

The product of its digits is 714420, while the sum is 49.

The square root of 9697657 is about 3114.1061317816. The cubic root of 9697657 is about 213.2499508665.

The spelling of 9697657 in words is "nine million, six hundred ninety-seven thousand, six hundred fifty-seven".