7197897 has 8 divisors (see below), whose sum is σ = 10968256. Its totient is φ = 4113072.

The previous prime is 7197893. The next prime is 7197907. The reversal of 7197897 is 7987917.

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

It is not a de Polignac number, because 7197897 - 2² = 7197893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7197893) 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, 171358 + ... + 171399.

It is an arithmetic number, because the mean of its divisors is an integer number (1371032).

Almost surely, 2^7197897 is an apocalyptic number.

It is an amenable number.

7197897 is a deficient number, since it is larger than the sum of its proper divisors (3770359).

7197897 is a wasteful number, since it uses less digits than its factorization.

7197897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342767.

The product of its digits is 222264, while the sum is 48.

The square root of 7197897 is about 2682.8896734678. The cubic root of 7197897 is about 193.0790748666.

The spelling of 7197897 in words is "seven million, one hundred ninety-seven thousand, eight hundred ninety-seven".