9935997 has 4 divisors (see below), whose sum is σ = 13248000. Its totient is φ = 6623996.

The previous prime is 9935987. The next prime is 9936037. The reversal of 9935997 is 7995399.

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: 7995399 = 3 ⋅2665133.

It is a cyclic number.

It is not a de Polignac number, because 9935997 - 2¹⁹ = 9411709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9935927) 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, 1655997 + ... + 1656002.

It is an arithmetic number, because the mean of its divisors is an integer number (3312000).

Almost surely, 2^9935997 is an apocalyptic number.

It is an amenable number.

9935997 is a deficient number, since it is larger than the sum of its proper divisors (3312003).

9935997 is a wasteful number, since it uses less digits than its factorization.

9935997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312002.

The product of its digits is 688905, while the sum is 51.

The square root of 9935997 is about 3152.1416529084. The cubic root of 9935997 is about 214.9828506242.

The spelling of 9935997 in words is "nine million, nine hundred thirty-five thousand, nine hundred ninety-seven".