197000900 has 36 divisors (see below), whose sum is σ = 437927700. Its totient is φ = 76876800.

The previous prime is 197000899. The next prime is 197000927. The reversal of 197000900 is 9000791.

197000900 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 77404804 + 119596096 = 8798^2 + 10936^2 .

It is a super-3 number, since 3×197000900³ (a number of 26 digits) contains 333 as substring.

197000900 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 197000900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19925 + ... + 28124.

Almost surely, 2^197000900 is an apocalyptic number.

197000900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197000900 is an abundant number, since it is smaller than the sum of its proper divisors (240926800).

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

197000900 is a wasteful number, since it uses less digits than its factorization.

197000900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48104 (or 48097 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 197000900 is about 14035.7009087541. The cubic root of 197000900 is about 581.8656728369.

The spelling of 197000900 in words is "one hundred ninety-seven million, nine hundred", and thus it is an aban number.