197703664 has 40 divisors (see below), whose sum is σ = 404974080. Its totient is φ = 93240000.

The previous prime is 197703661. The next prime is 197703673. The reversal of 197703664 is 466307791.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 197703664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197703661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75009 + ... + 77599.

It is an arithmetic number, because the mean of its divisors is an integer number (10124352).

Almost surely, 2^197703664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197703664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202487040).

197703664 is an abundant number, since it is smaller than the sum of its proper divisors (207270416).

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

197703664 is a wasteful number, since it uses less digits than its factorization.

197703664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 197703664 is about 14060.7134954098. The cubic root of 197703664 is about 582.5567508426.

The spelling of 197703664 in words is "one hundred ninety-seven million, seven hundred three thousand, six hundred sixty-four".