2106340447 has 2 divisors, whose sum is σ = 2106340448. Its totient is φ = 2106340446.

The previous prime is 2106340429. The next prime is 2106340451. The reversal of 2106340447 is 7440436012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2106340447 - 2¹⁹ = 2105816159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2106340487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053170223 + 1053170224.

It is an arithmetic number, because the mean of its divisors is an integer number (1053170224).

Almost surely, 2^2106340447 is an apocalyptic number.

2106340447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106340447 is an equidigital number, since it uses as much as digits as its factorization.

2106340447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 2106340447 is about 45894.8847585436. The cubic root of 2106340447 is about 1281.8666707703.

Adding to 2106340447 its reverse (7440436012), we get a palindrome (9546776459).

The spelling of 2106340447 in words is "two billion, one hundred six million, three hundred forty thousand, four hundred forty-seven".