197465664 has 56 divisors (see below), whose sum is σ = 569963808. Its totient is φ = 59837440.

The previous prime is 197465641. The next prime is 197465699. The reversal of 197465664 is 466564791.

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

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, 44637 + ... + 48860.

Almost surely, 2^197465664 is an apocalyptic number.

It is an amenable number.

197465664 is an abundant number, since it is smaller than the sum of its proper divisors (372498144).

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

197465664 is a wasteful number, since it uses less digits than its factorization.

197465664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93523 (or 93513 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 197465664 is about 14052.2476493976. The cubic root of 197465664 is about 582.3228921182.

The spelling of 197465664 in words is "one hundred ninety-seven million, four hundred sixty-five thousand, six hundred sixty-four".