42706211 has 2 divisors, whose sum is σ = 42706212. Its totient is φ = 42706210.

The previous prime is 42706207. The next prime is 42706219. The reversal of 42706211 is 11260724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42706211 - 2² = 42706207 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42706219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21353105 + 21353106.

It is an arithmetic number, because the mean of its divisors is an integer number (21353106).

Almost surely, 2^42706211 is an apocalyptic number.

42706211 is a deficient number, since it is larger than the sum of its proper divisors (1).

42706211 is an equidigital number, since it uses as much as digits as its factorization.

42706211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 42706211 is about 6534.9989288446. The cubic root of 42706211 is about 349.5401061764.

Adding to 42706211 its reverse (11260724), we get a palindrome (53966935).

The spelling of 42706211 in words is "forty-two million, seven hundred six thousand, two hundred eleven".