197355648 has 64 divisors (see below), whose sum is σ = 599123520. Its totient is φ = 56386560.

The previous prime is 197355629. The next prime is 197355671. The reversal of 197355648 is 846553791.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 197355597 and 197355606.

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, 34023 + ... + 39398.

It is an arithmetic number, because the mean of its divisors is an integer number (9361305).

Almost surely, 2^197355648 is an apocalyptic number.

It is an amenable number.

197355648 is an abundant number, since it is smaller than the sum of its proper divisors (401767872).

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

197355648 is an equidigital number, since it uses as much as digits as its factorization.

197355648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73445 (or 73433 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 197355648 is about 14048.3325700953. The cubic root of 197355648 is about 582.2147269224.

The spelling of 197355648 in words is "one hundred ninety-seven million, three hundred fifty-five thousand, six hundred forty-eight".