9665457 has 4 divisors (see below), whose sum is σ = 12887280. Its totient is φ = 6443636.

The previous prime is 9665449. The next prime is 9665477. The reversal of 9665457 is 7545669.

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.

It is a cyclic number.

It is not a de Polignac number, because 9665457 - 2³ = 9665449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9665407) 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, 1610907 + ... + 1610912.

It is an arithmetic number, because the mean of its divisors is an integer number (3221820).

Almost surely, 2^9665457 is an apocalyptic number.

It is an amenable number.

9665457 is a deficient number, since it is larger than the sum of its proper divisors (3221823).

9665457 is a wasteful number, since it uses less digits than its factorization.

9665457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221822.

The product of its digits is 226800, while the sum is 42.

The square root of 9665457 is about 3108.9318101239. The cubic root of 9665457 is about 213.0136648422.

The spelling of 9665457 in words is "nine million, six hundred sixty-five thousand, four hundred fifty-seven".