197313797 has 8 divisors (see below), whose sum is σ = 200467200. Its totient is φ = 194176944.

The previous prime is 197313793. The next prime is 197313827. The reversal of 197313797 is 797313791.

It is a happy number.

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

It is not a de Polignac number, because 197313797 - 2² = 197313793 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 (197313793) 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, 21104 + ... + 28982.

It is an arithmetic number, because the mean of its divisors is an integer number (25058400).

Almost surely, 2^197313797 is an apocalyptic number.

It is an amenable number.

197313797 is a deficient number, since it is larger than the sum of its proper divisors (3153403).

197313797 is an equidigital number, since it uses as much as digits as its factorization.

197313797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8275.

The product of its digits is 250047, while the sum is 47.

The square root of 197313797 is about 14046.8429549134. The cubic root of 197313797 is about 582.1735694294.

The spelling of 197313797 in words is "one hundred ninety-seven million, three hundred thirteen thousand, seven hundred ninety-seven".