197880489 has 21 divisors (see below), whose sum is σ = 297255559. Its totient is φ = 131667120.

The previous prime is 197880469. The next prime is 197880499. The reversal of 197880489 is 984088791.

The square root of 197880489 is 14067.

It is a perfect power (a square), and thus also a powerful number.

197880489 is a `hidden beast` number, since 19 + 78 + 80 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56746089 + 141134400 = 7533^2 + 11880^2 .

It is not a de Polignac number, because 197880489 - 2⁵ = 197880457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197880469) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 379549 + ... + 380069.

Almost surely, 2^197880489 is an apocalyptic number.

197880489 is the 14067-th square number.

197880489 is the 7034-th centered octagonal number.

It is an amenable number.

197880489 is a deficient number, since it is larger than the sum of its proper divisors (99375070).

197880489 is an frugal number, since it uses more digits than its factorization.

197880489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The cubic root of 197880489 is about 582.7303775388.

The spelling of 197880489 in words is "one hundred ninety-seven million, eight hundred eighty thousand, four hundred eighty-nine".