197865852 has 24 divisors (see below), whose sum is σ = 462210000. Its totient is φ = 65880576.

The previous prime is 197865851. The next prime is 197865859. The reversal of 197865852 is 258568791.

It is a junction number, because it is equal to n+sod(n) for n = 197865795 and 197865804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197865851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274 + ... + 20022.

It is an arithmetic number, because the mean of its divisors is an integer number (19258750).

Almost surely, 2^197865852 is an apocalyptic number.

197865852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197865852 is an abundant number, since it is smaller than the sum of its proper divisors (264344148).

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

197865852 is a wasteful number, since it uses less digits than its factorization.

197865852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18685 (or 18683 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 51.

The square root of 197865852 is about 14066.4797301955. The cubic root of 197865852 is about 582.7160092115.

The spelling of 197865852 in words is "one hundred ninety-seven million, eight hundred sixty-five thousand, eight hundred fifty-two".