2197684241 has 2 divisors, whose sum is σ = 2197684242. Its totient is φ = 2197684240.

The previous prime is 2197684211. The next prime is 2197684243. The reversal of 2197684241 is 1424867912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1703955841 + 493728400 = 41279^2 + 22220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2197684241 is a prime.

Together with 2197684243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2197684192 and 2197684201.

It is not a weakly prime, because it can be changed into another prime (2197684243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098842120 + 1098842121.

It is an arithmetic number, because the mean of its divisors is an integer number (1098842121).

Almost surely, 2^2197684241 is an apocalyptic number.

It is an amenable number.

2197684241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197684241 is an equidigital number, since it uses as much as digits as its factorization.

2197684241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 2197684241 is about 46879.4650246779. The cubic root of 2197684241 is about 1300.1349447689.

The spelling of 2197684241 in words is "two billion, one hundred ninety-seven million, six hundred eighty-four thousand, two hundred forty-one".