197772072 has 32 divisors (see below), whose sum is σ = 494980800. Its totient is φ = 65850624.

The previous prime is 197772061. The next prime is 197772073. The reversal of 197772072 is 270277791.

It is a super-2 number, since 2×197772072² = 78227584926346368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197772073) 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, 20133 + ... + 28299.

It is an arithmetic number, because the mean of its divisors is an integer number (15468150).

Almost surely, 2^197772072 is an apocalyptic number.

197772072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197772072 is an abundant number, since it is smaller than the sum of its proper divisors (297208728).

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

197772072 is a wasteful number, since it uses less digits than its factorization.

197772072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9185 (or 9181 counting only the distinct ones).

The product of its (nonzero) digits is 86436, while the sum is 42.

The square root of 197772072 is about 14063.1458785010. The cubic root of 197772072 is about 582.6239337936.

The spelling of 197772072 in words is "one hundred ninety-seven million, seven hundred seventy-two thousand, seventy-two".