197071856 has 10 divisors (see below), whose sum is σ = 381826752. Its totient is φ = 98535920.

The previous prime is 197071841. The next prime is 197071873. The reversal of 197071856 is 658170791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6158480 + ... + 6158511.

Almost surely, 2^197071856 is an apocalyptic number.

197071856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

197071856 is a deficient number, since it is larger than the sum of its proper divisors (184754896).

197071856 is a wasteful number, since it uses less digits than its factorization.

197071856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12316999 (or 12316993 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 44.

The square root of 197071856 is about 14038.2283782534. The cubic root of 197071856 is about 581.9355234564.

The spelling of 197071856 in words is "one hundred ninety-seven million, seventy-one thousand, eight hundred fifty-six".