197195893 has 8 divisors (see below), whose sum is σ = 201979008. Its totient is φ = 192421824.

The previous prime is 197195863. The next prime is 197195899. The reversal of 197195893 is 398591791.

It is a happy number.

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-197195893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197195893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197195899) 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, 66621 + ... + 69517.

It is an arithmetic number, because the mean of its divisors is an integer number (25247376).

Almost surely, 2^197195893 is an apocalyptic number.

It is an amenable number.

197195893 is a deficient number, since it is larger than the sum of its proper divisors (4783115).

197195893 is a wasteful number, since it uses less digits than its factorization.

197195893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523.

The product of its digits is 612360, while the sum is 52.

The square root of 197195893 is about 14042.6455128654. The cubic root of 197195893 is about 582.0575878979.

The spelling of 197195893 in words is "one hundred ninety-seven million, one hundred ninety-five thousand, eight hundred ninety-three".