197789560 has 64 divisors (see below), whose sum is σ = 474102720. Its totient is φ = 74004480.

The previous prime is 197789539. The next prime is 197789593. The reversal of 197789560 is 65987791.

It is a happy number.

197789560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 197789498 and 197789507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122277 + ... + 123883.

It is an arithmetic number, because the mean of its divisors is an integer number (7407855).

Almost surely, 2^197789560 is an apocalyptic number.

197789560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197789560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237051360).

197789560 is an abundant number, since it is smaller than the sum of its proper divisors (276313160).

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

197789560 is a wasteful number, since it uses less digits than its factorization.

197789560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 197789560 is about 14063.7676317550. The cubic root of 197789560 is about 582.6411061323.

The spelling of 197789560 in words is "one hundred ninety-seven million, seven hundred eighty-nine thousand, five hundred sixty".