197730656 has 12 divisors (see below), whose sum is σ = 389282292. Its totient is φ = 98865312.

The previous prime is 197730583. The next prime is 197730661. The reversal of 197730656 is 656037791.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent 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 as a sum of consecutive naturals, namely, 3089510 + ... + 3089573.

It is an arithmetic number, because the mean of its divisors is an integer number (32440191).

Almost surely, 2^197730656 is an apocalyptic number.

197730656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

197730656 is a deficient number, since it is larger than the sum of its proper divisors (191551636).

197730656 is an equidigital number, since it uses as much as digits as its factorization.

197730656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6179093 (or 6179085 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 197730656 is about 14061.6733001446. The cubic root of 197730656 is about 582.5832613212.

The spelling of 197730656 in words is "one hundred ninety-seven million, seven hundred thirty thousand, six hundred fifty-six".