7998197 has 8 divisors (see below), whose sum is σ = 8169600. Its totient is φ = 7828704.

The previous prime is 7998169. The next prime is 7998223. The reversal of 7998197 is 7918997.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7998197 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 (7998167) 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, 10454 + ... + 11192.

It is an arithmetic number, because the mean of its divisors is an integer number (1021200).

Almost surely, 2^7998197 is an apocalyptic number.

It is an amenable number.

7998197 is a deficient number, since it is larger than the sum of its proper divisors (171403).

7998197 is a wasteful number, since it uses less digits than its factorization.

7998197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955.

The product of its digits is 285768, while the sum is 50.

The square root of 7998197 is about 2828.1083784042. The cubic root of 7998197 is about 199.9849738711.

The spelling of 7998197 in words is "seven million, nine hundred ninety-eight thousand, one hundred ninety-seven".