9615997 has 8 divisors (see below), whose sum is σ = 9828000. Its totient is φ = 9405744.

The previous prime is 9615989. The next prime is 9616003. The reversal of 9615997 is 7995169.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9615997 - 2³ = 9615989 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 (9615937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20358 + ... + 20824.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^9615997 is an apocalyptic number.

It is an amenable number.

9615997 is a deficient number, since it is larger than the sum of its proper divisors (212003).

9615997 is a wasteful number, since it uses less digits than its factorization.

9615997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its digits is 153090, while the sum is 46.

The square root of 9615997 is about 3100.9671072103. The cubic root of 9615997 is about 212.6496993612.

The spelling of 9615997 in words is "nine million, six hundred fifteen thousand, nine hundred ninety-seven".