2197427 has 2 divisors, whose sum is σ = 2197428. Its totient is φ = 2197426.

The previous prime is 2197421. The next prime is 2197453. The reversal of 2197427 is 7247912.

2197427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2197427 - 2⁴ = 2197411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2197393 and 2197402.

It is not a weakly prime, because it can be changed into another prime (2197421) 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, 1098713 + 1098714.

It is an arithmetic number, because the mean of its divisors is an integer number (1098714).

2^2197427 is an apocalyptic number.

2197427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197427 is an equidigital number, since it uses as much as digits as its factorization.

2197427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 2197427 is about 1482.3720855440. The cubic root of 2197427 is about 130.0084215452.

The spelling of 2197427 in words is "two million, one hundred ninety-seven thousand, four hundred twenty-seven".