197190856 has 16 divisors (see below), whose sum is σ = 374941440. Its totient is φ = 97206480.

The previous prime is 197190839. The next prime is 197190881. The reversal of 197190856 is 658091791.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173016 + ... + 174151.

It is an arithmetic number, because the mean of its divisors is an integer number (23433840).

Almost surely, 2^197190856 is an apocalyptic number.

It is an amenable number.

197190856 is a deficient number, since it is larger than the sum of its proper divisors (177750584).

197190856 is a wasteful number, since it uses less digits than its factorization.

197190856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347244 (or 347240 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 197190856 is about 14042.4661651720. The cubic root of 197190856 is about 582.0526319985.

The spelling of 197190856 in words is "one hundred ninety-seven million, one hundred ninety thousand, eight hundred fifty-six".