197477648 has 40 divisors (see below), whose sum is σ = 393396696. Its totient is φ = 95974400.

The previous prime is 197477641. The next prime is 197477669. The reversal of 197477648 is 846774791.

It can be written as a sum of positive squares in 4 ways, for example, as 2930944 + 194546704 = 1712^2 + 13948^2 .

It is a super-2 number, since 2×197477648² = 77994842919223808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 197477648.

It is not an unprimeable number, because it can be changed into a prime (197477641) by changing a digit.

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, 302090 + ... + 302742.

Almost surely, 2^197477648 is an apocalyptic number.

It is an amenable number.

197477648 is a deficient number, since it is larger than the sum of its proper divisors (195919048).

197477648 is a wasteful number, since it uses less digits than its factorization.

197477648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1157 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 53.

The square root of 197477648 is about 14052.6740515818. The cubic root of 197477648 is about 582.3346720841.

The spelling of 197477648 in words is "one hundred ninety-seven million, four hundred seventy-seven thousand, six hundred forty-eight".