406049971 has 2 divisors, whose sum is σ = 406049972. Its totient is φ = 406049970.

The previous prime is 406049939. The next prime is 406050077. The reversal of 406049971 is 179940604.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406049971 - 2⁵ = 406049939 is a prime.

It is not a weakly prime, because it can be changed into another prime (406049921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203024985 + 203024986.

It is an arithmetic number, because the mean of its divisors is an integer number (203024986).

Almost surely, 2^406049971 is an apocalyptic number.

406049971 is a deficient number, since it is larger than the sum of its proper divisors (1).

406049971 is an equidigital number, since it uses as much as digits as its factorization.

406049971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 406049971 is about 20150.6816510013. The cubic root of 406049971 is about 740.5024412226.

The spelling of 406049971 in words is "four hundred six million, forty-nine thousand, nine hundred seventy-one".