196974855 has 96 divisors (see below), whose sum is σ = 444545280. Its totient is φ = 81829440.

The previous prime is 196974851. The next prime is 196974907. The reversal of 196974855 is 558479691.

It is not a de Polignac number, because 196974855 - 2² = 196974851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196974851) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71412 + ... + 74118.

It is an arithmetic number, because the mean of its divisors is an integer number (4630680).

Almost surely, 2^196974855 is an apocalyptic number.

196974855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

196974855 is an abundant number, since it is smaller than the sum of its proper divisors (247570425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196974855 is a wasteful number, since it uses less digits than its factorization.

196974855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746 (or 2733 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 196974855 is about 14034.7730654970. The cubic root of 196974855 is about 581.8400293680.

The spelling of 196974855 in words is "one hundred ninety-six million, nine hundred seventy-four thousand, eight hundred fifty-five".