406552667 has 2 divisors, whose sum is σ = 406552668. Its totient is φ = 406552666.

The previous prime is 406552591. The next prime is 406552697. The reversal of 406552667 is 766255604.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406552667 is a prime.

It is not a weakly prime, because it can be changed into another prime (406552697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203276333 + 203276334.

It is an arithmetic number, because the mean of its divisors is an integer number (203276334).

Almost surely, 2^406552667 is an apocalyptic number.

406552667 is a deficient number, since it is larger than the sum of its proper divisors (1).

406552667 is an equidigital number, since it uses as much as digits as its factorization.

406552667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 406552667 is about 20163.1512170097. The cubic root of 406552667 is about 740.8078996072.

The spelling of 406552667 in words is "four hundred six million, five hundred fifty-two thousand, six hundred sixty-seven".