406227697 has 2 divisors, whose sum is σ = 406227698. Its totient is φ = 406227696.

The previous prime is 406227691. The next prime is 406227709. The reversal of 406227697 is 796722604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341843121 + 64384576 = 18489^2 + 8024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406227697 is a prime.

It is not a weakly prime, because it can be changed into another prime (406227691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203113848 + 203113849.

It is an arithmetic number, because the mean of its divisors is an integer number (203113849).

Almost surely, 2^406227697 is an apocalyptic number.

It is an amenable number.

406227697 is a deficient number, since it is larger than the sum of its proper divisors (1).

406227697 is an equidigital number, since it uses as much as digits as its factorization.

406227697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 406227697 is about 20155.0910938155. The cubic root of 406227697 is about 740.6104635103.

The spelling of 406227697 in words is "four hundred six million, two hundred twenty-seven thousand, six hundred ninety-seven".