197972056 has 8 divisors (see below), whose sum is σ = 371197620. Its totient is φ = 98986024.

The previous prime is 197972051. The next prime is 197972059. The reversal of 197972056 is 650279791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 197971997 and 197972015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197972051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12373246 + ... + 12373261.

Almost surely, 2^197972056 is an apocalyptic number.

It is an amenable number.

197972056 is a deficient number, since it is larger than the sum of its proper divisors (173225564).

197972056 is a wasteful number, since it uses less digits than its factorization.

197972056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24746513 (or 24746509 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 197972056 is about 14070.2542976309. The cubic root of 197972056 is about 582.8202476829.

The spelling of 197972056 in words is "one hundred ninety-seven million, nine hundred seventy-two thousand, fifty-six".