197529972 has 24 divisors (see below), whose sum is σ = 462746592. Its totient is φ = 65580000.

The previous prime is 197529929. The next prime is 197529973. The reversal of 197529972 is 279925791.

197529972 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197529973) 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 in 7 ways as a sum of consecutive naturals, for example, 29779 + ... + 35802.

It is an arithmetic number, because the mean of its divisors is an integer number (19281108).

Almost surely, 2^197529972 is an apocalyptic number.

197529972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197529972 is an abundant number, since it is smaller than the sum of its proper divisors (265216620).

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

197529972 is a wasteful number, since it uses less digits than its factorization.

197529972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65839 (or 65837 counting only the distinct ones).

The product of its digits is 714420, while the sum is 51.

The square root of 197529972 is about 14054.5356380067. The cubic root of 197529972 is about 582.3860996574.

The spelling of 197529972 in words is "one hundred ninety-seven million, five hundred twenty-nine thousand, nine hundred seventy-two".