197727441 has 16 divisors (see below), whose sum is σ = 267605760. Its totient is φ = 129841920.

The previous prime is 197727427. The next prime is 197727451. The reversal of 197727441 is 144727791.

It is not a de Polignac number, because 197727441 - 2⁶ = 197727377 is a prime.

It is a super-2 number, since 2×197727441² = 78192281848816962, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 197727393 and 197727402.

It is not an unprimeable number, because it can be changed into a prime (197727451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144601 + ... + 145961.

It is an arithmetic number, because the mean of its divisors is an integer number (16725360).

Almost surely, 2^197727441 is an apocalyptic number.

It is an amenable number.

197727441 is a deficient number, since it is larger than the sum of its proper divisors (69878319).

197727441 is a wasteful number, since it uses less digits than its factorization.

197727441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056.

The product of its digits is 98784, while the sum is 42.

The square root of 197727441 is about 14061.5589818483. The cubic root of 197727441 is about 582.5801038015.

The spelling of 197727441 in words is "one hundred ninety-seven million, seven hundred twenty-seven thousand, four hundred forty-one".