197956650 has 24 divisors (see below), whose sum is σ = 490932864. Its totient is φ = 52788400.

The previous prime is 197956631. The next prime is 197956663. The reversal of 197956650 is 56659791.

It is a self number, because there is not a number n which added to its sum of digits gives 197956650.

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 11 ways as a sum of consecutive naturals, for example, 659706 + ... + 660005.

It is an arithmetic number, because the mean of its divisors is an integer number (20455536).

Almost surely, 2^197956650 is an apocalyptic number.

197956650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197956650 is an abundant number, since it is smaller than the sum of its proper divisors (292976214).

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

197956650 is a wasteful number, since it uses less digits than its factorization.

197956650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319726 (or 1319721 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 48.

The square root of 197956650 is about 14069.7068199732. The cubic root of 197956650 is about 582.8051291154.

The spelling of 197956650 in words is "one hundred ninety-seven million, nine hundred fifty-six thousand, six hundred fifty".