406007971 has 2 divisors, whose sum is σ = 406007972. Its totient is φ = 406007970.

The previous prime is 406007929. The next prime is 406007989. The reversal of 406007971 is 179700604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406007971 - 2¹¹ = 406005923 is a prime.

It is not a weakly prime, because it can be changed into another prime (406007911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203003985 + 203003986.

It is an arithmetic number, because the mean of its divisors is an integer number (203003986).

Almost surely, 2^406007971 is an apocalyptic number.

406007971 is a deficient number, since it is larger than the sum of its proper divisors (1).

406007971 is an equidigital number, since it uses as much as digits as its factorization.

406007971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 406007971 is about 20149.6394756829. The cubic root of 406007971 is about 740.4769089177.

The spelling of 406007971 in words is "four hundred six million, seven thousand, nine hundred seventy-one".