197087280 has 160 divisors (see below), whose sum is σ = 663499200. Its totient is φ = 48107520.

The previous prime is 197087269. The next prime is 197087327. The reversal of 197087280 is 82780791.

197087280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564546 + ... + 564894.

It is an arithmetic number, because the mean of its divisors is an integer number (4146870).

Almost surely, 2^197087280 is an apocalyptic number.

197087280 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 197087280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331749600).

197087280 is an abundant number, since it is smaller than the sum of its proper divisors (466411920).

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

197087280 is a wasteful number, since it uses less digits than its factorization.

197087280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 197087280 is about 14038.7777245742. Note that the first 4 decimals coincide. The cubic root of 197087280 is about 581.9507049568.

The spelling of 197087280 in words is "one hundred ninety-seven million, eighty-seven thousand, two hundred eighty".