406696111 has 2 divisors, whose sum is σ = 406696112. Its totient is φ = 406696110.

The previous prime is 406696093. The next prime is 406696163. The reversal of 406696111 is 111696604.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406696111 - 2⁷ = 406695983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406691111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203348055 + 203348056.

It is an arithmetic number, because the mean of its divisors is an integer number (203348056).

Almost surely, 2^406696111 is an apocalyptic number.

406696111 is a deficient number, since it is larger than the sum of its proper divisors (1).

406696111 is an equidigital number, since it uses as much as digits as its factorization.

406696111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 406696111 is about 20166.7079861836. The cubic root of 406696111 is about 740.8950157930.

The spelling of 406696111 in words is "four hundred six million, six hundred ninety-six thousand, one hundred eleven".