406813271 has 2 divisors, whose sum is σ = 406813272. Its totient is φ = 406813270.

The previous prime is 406813249. The next prime is 406813301. The reversal of 406813271 is 172318604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406813271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406813871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203406635 + 203406636.

It is an arithmetic number, because the mean of its divisors is an integer number (203406636).

Almost surely, 2^406813271 is an apocalyptic number.

406813271 is a deficient number, since it is larger than the sum of its proper divisors (1).

406813271 is an equidigital number, since it uses as much as digits as its factorization.

406813271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 406813271 is about 20169.6125644495. The cubic root of 406813271 is about 740.9661540243.

The spelling of 406813271 in words is "four hundred six million, eight hundred thirteen thousand, two hundred seventy-one".