197981952 has 108 divisors (see below), whose sum is σ = 613065096. Its totient is φ = 56555520.

The previous prime is 197981941. The next prime is 197981969. The reversal of 197981952 is 259189791.

197981952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 197981895 and 197981904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35002 + ... + 40262.

Almost surely, 2^197981952 is an apocalyptic number.

197981952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197981952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306532548).

197981952 is an abundant number, since it is smaller than the sum of its proper divisors (415083144).

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

197981952 is an equidigital number, since it uses as much as digits as its factorization.

197981952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294 (or 5273 counting only the distinct ones).

The product of its digits is 408240, while the sum is 51.

The square root of 197981952 is about 14070.6059571008. The cubic root of 197981952 is about 582.8299586377.

The spelling of 197981952 in words is "one hundred ninety-seven million, nine hundred eighty-one thousand, nine hundred fifty-two".