9611997 has 4 divisors (see below), whose sum is σ = 12816000. Its totient is φ = 6407996.

The previous prime is 9611993. The next prime is 9612007. The reversal of 9611997 is 7991169.

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 9611997 - 2² = 9611993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9611993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601997 + ... + 1602002.

It is an arithmetic number, because the mean of its divisors is an integer number (3204000).

Almost surely, 2^9611997 is an apocalyptic number.

It is an amenable number.

9611997 is a deficient number, since it is larger than the sum of its proper divisors (3204003).

9611997 is a wasteful number, since it uses less digits than its factorization.

9611997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204002.

The product of its digits is 30618, while the sum is 42.

The square root of 9611997 is about 3100.3220800427. The cubic root of 9611997 is about 212.6202097247.

The spelling of 9611997 in words is "nine million, six hundred eleven thousand, nine hundred ninety-seven".