197887250 has 64 divisors (see below), whose sum is σ = 407182464. Its totient is φ = 71416000.

The previous prime is 197887243. The next prime is 197887267. The reversal of 197887250 is 52788791.

It is a junction number, because it is equal to n+sod(n) for n = 197887195 and 197887204.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 624092 + ... + 624408.

It is an arithmetic number, because the mean of its divisors is an integer number (6362226).

Almost surely, 2^197887250 is an apocalyptic number.

197887250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197887250 is an abundant number, since it is smaller than the sum of its proper divisors (209295214).

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

197887250 is a wasteful number, since it uses less digits than its factorization.

197887250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 47.

The square root of 197887250 is about 14067.2403121579. The cubic root of 197887250 is about 582.7370141965.

The spelling of 197887250 in words is "one hundred ninety-seven million, eight hundred eighty-seven thousand, two hundred fifty".