197609564 has 24 divisors (see below), whose sum is σ = 369946080. Its totient is φ = 92030976.

The previous prime is 197609549. The next prime is 197609591. The reversal of 197609564 is 465906791.

197609564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8384 + ... + 21575.

It is an arithmetic number, because the mean of its divisors is an integer number (15414420).

Almost surely, 2^197609564 is an apocalyptic number.

It is an amenable number.

197609564 is a deficient number, since it is larger than the sum of its proper divisors (172336516).

197609564 is a wasteful number, since it uses less digits than its factorization.

197609564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30077 (or 30075 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 197609564 is about 14057.3668942658. The cubic root of 197609564 is about 582.4643106576.

The spelling of 197609564 in words is "one hundred ninety-seven million, six hundred nine thousand, five hundred sixty-four".