196857216 has 96 divisors (see below), whose sum is σ = 587550600. Its totient is φ = 65608704.

The previous prime is 196857203. The next prime is 196857251. The reversal of 196857216 is 612758691.

196857216 is a `hidden beast` number, since 1 + 9 + 68 + 572 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27940 + ... + 34268.

Almost surely, 2^196857216 is an apocalyptic number.

196857216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196857216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293775300).

196857216 is an abundant number, since it is smaller than the sum of its proper divisors (390693384).

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

196857216 is an frugal number, since it uses more digits than its factorization.

196857216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6358 (or 6334 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 196857216 is about 14030.5814562334. The cubic root of 196857216 is about 581.7241758158.

The spelling of 196857216 in words is "one hundred ninety-six million, eight hundred fifty-seven thousand, two hundred sixteen".