197270856 has 128 divisors (see below), whose sum is σ = 599270400. Its totient is φ = 59857920.

The previous prime is 197270849. The next prime is 197270861. The reversal of 197270856 is 658072791.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112966 + ... + 114698.

It is an arithmetic number, because the mean of its divisors is an integer number (4681800).

Almost surely, 2^197270856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197270856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299635200).

197270856 is an abundant number, since it is smaller than the sum of its proper divisors (401999544).

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

197270856 is a wasteful number, since it uses less digits than its factorization.

197270856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 197270856 is about 14045.3143788240. The cubic root of 197270856 is about 582.1313339490.

The spelling of 197270856 in words is "one hundred ninety-seven million, two hundred seventy thousand, eight hundred fifty-six".