7117997 has 8 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 6979840.

The previous prime is 7117987. The next prime is 7118077. The reversal of 7117997 is 7997117.

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 7117997 - 2²⁰ = 6069421 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 (7117927) 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 7 ways as a sum of consecutive naturals, for example, 15629 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^7117997 is an apocalyptic number.

It is an amenable number.

7117997 is a deficient number, since it is larger than the sum of its proper divisors (139603).

7117997 is a wasteful number, since it uses less digits than its factorization.

7117997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its digits is 27783, while the sum is 41.

The square root of 7117997 is about 2667.9574584314. The cubic root of 7117997 is about 192.3619924981.

The spelling of 7117997 in words is "seven million, one hundred seventeen thousand, nine hundred ninety-seven".