406308943 has 2 divisors, whose sum is σ = 406308944. Its totient is φ = 406308942.

The previous prime is 406308923. The next prime is 406308949. The reversal of 406308943 is 349803604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406308943 - 2⁵ = 406308911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406308949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203154471 + 203154472.

It is an arithmetic number, because the mean of its divisors is an integer number (203154472).

Almost surely, 2^406308943 is an apocalyptic number.

406308943 is a deficient number, since it is larger than the sum of its proper divisors (1).

406308943 is an equidigital number, since it uses as much as digits as its factorization.

406308943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 406308943 is about 20157.1065135847. The cubic root of 406308943 is about 740.6598345298.

The spelling of 406308943 in words is "four hundred six million, three hundred eight thousand, nine hundred forty-three".