196855797 has 8 divisors (see below), whose sum is σ = 270941440. Its totient is φ = 127003680.

The previous prime is 196855793. The next prime is 196855819. The reversal of 196855797 is 797558691.

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

It is not a de Polignac number, because 196855797 - 2² = 196855793 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 (196855793) 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, 1058272 + ... + 1058457.

It is an arithmetic number, because the mean of its divisors is an integer number (33867680).

Almost surely, 2^196855797 is an apocalyptic number.

It is an amenable number.

196855797 is a deficient number, since it is larger than the sum of its proper divisors (74085643).

196855797 is a wasteful number, since it uses less digits than its factorization.

196855797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116763.

The product of its digits is 4762800, while the sum is 57.

The square root of 196855797 is about 14030.5308880313. The cubic root of 196855797 is about 581.7227780708.

The spelling of 196855797 in words is "one hundred ninety-six million, eight hundred fifty-five thousand, seven hundred ninety-seven".