197556972 has 24 divisors (see below), whose sum is σ = 462951216. Its totient is φ = 65568768.

The previous prime is 197556943. The next prime is 197556977. The reversal of 197556972 is 279655791.

It is not an unprimeable number, because it can be changed into a prime (197556977) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 32533 + ... + 38124.

It is an arithmetic number, because the mean of its divisors is an integer number (19289634).

Almost surely, 2^197556972 is an apocalyptic number.

197556972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197556972 is an abundant number, since it is smaller than the sum of its proper divisors (265394244).

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

197556972 is a wasteful number, since it uses less digits than its factorization.

197556972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70897 (or 70895 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 51.

The square root of 197556972 is about 14055.4961491937. The cubic root of 197556972 is about 582.4126335350.

The spelling of 197556972 in words is "one hundred ninety-seven million, five hundred fifty-six thousand, nine hundred seventy-two".