197984530 has 16 divisors (see below), whose sum is σ = 362413440. Its totient is φ = 77851312.

The previous prime is 197984509. The next prime is 197984557. The reversal of 197984530 is 35489791.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167194 + ... + 168373.

It is an arithmetic number, because the mean of its divisors is an integer number (22650840).

Almost surely, 2^197984530 is an apocalyptic number.

197984530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197984530 is a deficient number, since it is larger than the sum of its proper divisors (164428910).

197984530 is a wasteful number, since it uses less digits than its factorization.

197984530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335633.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 197984530 is about 14070.6975662190. The cubic root of 197984530 is about 582.8324883786.

The spelling of 197984530 in words is "one hundred ninety-seven million, nine hundred eighty-four thousand, five hundred thirty".